1009100055500 has 24 divisors (see below), whose sum is σ = 2203874522304. Its totient is φ = 403640022000.

The previous prime is 1009100055499. The next prime is 1009100055527. The reversal of 1009100055500 is 55500019001.

It is a self number, because there is not a number n which added to its sum of digits gives 1009100055500.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1009099556 + ... + 1009100555.

It is an arithmetic number, because the mean of its divisors is an integer number (91828105096).

Almost surely, 2^{1009100055500} is an apocalyptic number.

1009100055500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1009100055500 is an abundant number, since it is smaller than the sum of its proper divisors (1194774466804).

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

1009100055500 is a wasteful number, since it uses less digits than its factorization.

1009100055500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2018200130 (or 2018200118 counting only the distinct ones).

The product of its (nonzero) digits is 1125, while the sum is 26.

The spelling of 1009100055500 in words is "one trillion, nine billion, one hundred million, fifty-five thousand, five hundred".