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55668667169 = 194762338933
BaseRepresentation
bin110011110110000111…
…000111001100100001
312022200122102022002202
4303312013013030201
51403002134322134
641323540422545
74010343602123
oct636607071441
9168618368082
1055668667169
1121677569655
12a9573a7a55
1353322ba15b
1429a1531213
1516ac37ed7e
hexcf61c7321

55668667169 has 8 divisors (see below), whose sum is σ = 59845376640. Its totient is φ = 51616635696.

The previous prime is 55668667147. The next prime is 55668667189. The reversal of 55668667169 is 96176686655.

55668667169 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55668667169 - 28 = 55668666913 is a prime.

It is a super-2 number, since 2×556686671692 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55668667189) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31168574 + ... + 31170359.

It is an arithmetic number, because the mean of its divisors is an integer number (7480672080).

Almost surely, 255668667169 is an apocalyptic number.

It is an amenable number.

55668667169 is a deficient number, since it is larger than the sum of its proper divisors (4176709471).

55668667169 is a wasteful number, since it uses less digits than its factorization.

55668667169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62338999.

The product of its digits is 97977600, while the sum is 65.

The spelling of 55668667169 in words is "fifty-five billion, six hundred sixty-eight million, six hundred sixty-seven thousand, one hundred sixty-nine".

Divisors: 1 19 47 893 62338933 1184439727 2929929851 55668667169