10001615500 has 24 divisors (see below), whose sum is σ = 21843529344. Its totient is φ = 4000646000.

The previous prime is 10001615479. The next prime is 10001615501. The reversal of 10001615500 is 551610001.

It is not an unprimeable number, because it can be changed into a prime (10001615501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10001116 + ... + 10002115.

It is an arithmetic number, because the mean of its divisors is an integer number (910147056).

Almost surely, 2^10001615500 is an apocalyptic number.

10001615500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10001615500 is an abundant number, since it is smaller than the sum of its proper divisors (11841913844).

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

10001615500 is a wasteful number, since it uses less digits than its factorization.

10001615500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20003250 (or 20003238 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 19.

The spelling of 10001615500 in words is "ten billion, one million, six hundred fifteen thousand, five hundred".