100551135540 has 48 divisors (see below), whose sum is σ = 281573546688. Its totient is φ = 26810744064.

The previous prime is 100551135511. The next prime is 100551135563. The reversal of 100551135540 is 45531155001.

It is a super-2 number, since 2×100551135540² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 100551135498 and 100551135507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 502704 + ... + 673656.

It is an arithmetic number, because the mean of its divisors is an integer number (5866115556).

Almost surely, 2^100551135540 is an apocalyptic number.

100551135540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100551135540 is an abundant number, since it is smaller than the sum of its proper divisors (181022411148).

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

100551135540 is a wasteful number, since it uses less digits than its factorization.

100551135540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180768 (or 180766 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 30.

The spelling of 100551135540 in words is "one hundred billion, five hundred fifty-one million, one hundred thirty-five thousand, five hundred forty".