100551235950 has 144 divisors (see below), whose sum is σ = 304553476080. Its totient is φ = 24376017600.

The previous prime is 100551235919. The next prime is 100551236021. The reversal of 100551235950 is 59532155001.

100551235950 is a `hidden beast` number, since 1 + 0 + 0 + 55 + 12 + 3 + 595 + 0 = 666.

It is a super-2 number, since 2×100551235950² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 144429 + ... + 471128.

It is an arithmetic number, because the mean of its divisors is an integer number (2114954695).

Almost surely, 2^100551235950 is an apocalyptic number.

100551235950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100551235950 is an abundant number, since it is smaller than the sum of its proper divisors (204002240130).

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

100551235950 is a wasteful number, since it uses less digits than its factorization.

100551235950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615600 (or 615578 counting only the distinct ones).

The product of its (nonzero) digits is 33750, while the sum is 36.

The spelling of 100551235950 in words is "one hundred billion, five hundred fifty-one million, two hundred thirty-five thousand, nine hundred fifty".