100515452040 has 128 divisors (see below), whose sum is σ = 335121840000. Its totient is φ = 26798494464.

The previous prime is 100515452027. The next prime is 100515452041. The reversal of 100515452040 is 40254515001.

100515452040 is a `hidden beast` number, since 1 + 0 + 0 + 51 + 54 + 520 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 100515451995 and 100515452013.

It is not an unprimeable number, because it can be changed into a prime (100515452041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8890311 + ... + 8901609.

It is an arithmetic number, because the mean of its divisors is an integer number (2618139375).

Almost surely, 2^100515452040 is an apocalyptic number.

100515452040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100515452040 is an abundant number, since it is smaller than the sum of its proper divisors (234606387960).

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

100515452040 is a wasteful number, since it uses less digits than its factorization.

100515452040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19556 (or 19546 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

Adding to 100515452040 its reverse (40254515001), we get a palindrome (140769967041).

The spelling of 100515452040 in words is "one hundred billion, five hundred fifteen million, four hundred fifty-two thousand, forty".