100015055100 has 144 divisors (see below), whose sum is σ = 331902090240. Its totient is φ = 25810315200.

The previous prime is 100015055099. The next prime is 100015055143. The reversal of 100015055100 is 1550510001.

100015055100 is a `hidden beast` number, since 1 + 0 + 0 + 0 + 150 + 5 + 510 + 0 = 666.

It is a super-2 number, since 2×100015055100² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 47 ways as a sum of consecutive naturals, for example, 513762 + ... + 681161.

Almost surely, 2^100015055100 is an apocalyptic number.

100015055100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100015055100 is an abundant number, since it is smaller than the sum of its proper divisors (231887035140).

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

100015055100 is a wasteful number, since it uses less digits than its factorization.

100015055100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1194977 (or 1194964 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 18.

Adding to 100015055100 its reverse (1550510001), we get a palindrome (101565565101).

The spelling of 100015055100 in words is "one hundred billion, fifteen million, fifty-five thousand, one hundred".