100651551556 has 6 divisors (see below), whose sum is σ = 176140215230. Its totient is φ = 50325775776.

The previous prime is 100651551547. The next prime is 100651551557. The reversal of 100651551556 is 655155156001.

It can be written as a sum of positive squares in only one way, i.e., 92300516100 + 8351035456 = 303810^2 + 91384^2 .

It is a super-2 number, since 2×100651551556² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100651551557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12581443941 + ... + 12581443948.

Almost surely, 2^100651551556 is an apocalyptic number.

It is an amenable number.

100651551556 is a deficient number, since it is larger than the sum of its proper divisors (75488663674).

100651551556 is a wasteful number, since it uses less digits than its factorization.

100651551556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25162887893 (or 25162887891 counting only the distinct ones).

The product of its (nonzero) digits is 112500, while the sum is 40.

The spelling of 100651551556 in words is "one hundred billion, six hundred fifty-one million, five hundred fifty-one thousand, five hundred fifty-six".