100661250544 has 40 divisors (see below), whose sum is σ = 208129678848. Its totient is φ = 46996992000.

The previous prime is 100661250539. The next prime is 100661250563. The reversal of 100661250544 is 445052166001.

It is a super-2 number, since 2×100661250544² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1422457 + ... + 1491544.

Almost surely, 2^100661250544 is an apocalyptic number.

It is an amenable number.

100661250544 is an abundant number, since it is smaller than the sum of its proper divisors (107468428304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100661250544 is a wasteful number, since it uses less digits than its factorization.

100661250544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2914153 (or 2914147 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 100661250544 in words is "one hundred billion, six hundred sixty-one million, two hundred fifty thousand, five hundred forty-four".