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80665110108331 = 743893011128079
BaseRepresentation
bin10010010101110101001111…
…001110111101100010101011
3101120121111202012212021122221
4102111311033032331202223
541033104121141431311
6443321012350254511
722663601424553150
oct2225651716754253
9346544665767587
1080665110108331
112377a9767a2821
1290695321b7437
1336018c1b4ac38
1415cc2d8252227
1594d440960671
hex495d4f3bd8ab

80665110108331 has 16 divisors (see below), whose sum is σ = 95392537574400. Its totient is φ = 66774776257728.

The previous prime is 80665110108313. The next prime is 80665110108389. The reversal of 80665110108331 is 13380101156608.

It is not a de Polignac number, because 80665110108331 - 29 = 80665110107819 is a prime.

It is a super-2 number, since 2×806651101083312 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80665110108301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1505537251 + ... + 1505590828.

It is an arithmetic number, because the mean of its divisors is an integer number (5962033598400).

Almost surely, 280665110108331 is an apocalyptic number.

80665110108331 is a deficient number, since it is larger than the sum of its proper divisors (14727427466069).

80665110108331 is a wasteful number, since it uses less digits than its factorization.

80665110108331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3011128218.

The product of its (nonzero) digits is 103680, while the sum is 43.

The spelling of 80665110108331 in words is "eighty trillion, six hundred sixty-five billion, one hundred ten million, one hundred eight thousand, three hundred thirty-one".

Divisors: 1 7 43 89 301 623 3827 26789 3011128079 21077896553 129478507397 267990399031 906349551779 1875932793217 11523587158333 80665110108331