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22050666631 = 737782310883
BaseRepresentation
bin10100100010010100…
…100111100010000111
32002220202012221000201
4110202110213202013
5330124432313011
614044022151331
71410302400550
oct244224474207
962822187021
1022050666631
119396032234
124334882547
1321054b1946
1410d27ad327
15890cdacc1
hex522527887

22050666631 has 16 divisors (see below), whose sum is σ = 25887550464. Its totient is φ = 18385704864.

The previous prime is 22050666601. The next prime is 22050666641. The reversal of 22050666631 is 13666605022.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-22050666631 is a prime.

It is a super-2 number, since 2×220506666312 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22050666601) 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, 2020716 + ... + 2031598.

It is an arithmetic number, because the mean of its divisors is an integer number (1617971904).

Almost surely, 222050666631 is an apocalyptic number.

22050666631 is a deficient number, since it is larger than the sum of its proper divisors (3836883833).

22050666631 is a wasteful number, since it uses less digits than its factorization.

22050666631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18750.

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 22050666631 in words is "twenty-two billion, fifty million, six hundred sixty-six thousand, six hundred thirty-one".

Divisors: 1 7 37 259 7823 10883 54761 76181 289451 402671 2026157 2818697 85137709 595963963 3150095233 22050666631