100560651621 has 16 divisors (see below), whose sum is σ = 134211470400. Its totient is φ = 66975173888.

The previous prime is 100560651617. The next prime is 100560651637. The reversal of 100560651621 is 126156065001.

It is a cyclic number.

It is not a de Polignac number, because 100560651621 - 2² = 100560651617 is a prime.

It is a super-2 number, since 2×100560651621² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100560651671) 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, 25207495 + ... + 25211483.

It is an arithmetic number, because the mean of its divisors is an integer number (8388216900).

Almost surely, 2^100560651621 is an apocalyptic number.

It is an amenable number.

100560651621 is a deficient number, since it is larger than the sum of its proper divisors (33650818779).

100560651621 is a wasteful number, since it uses less digits than its factorization.

100560651621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10068.

The product of its (nonzero) digits is 10800, while the sum is 33.

The spelling of 100560651621 in words is "one hundred billion, five hundred sixty million, six hundred fifty-one thousand, six hundred twenty-one".