15000555000 has 80 divisors (see below), whose sum is σ = 46861780680. Its totient is φ = 4000144000.

The previous prime is 15000554999. The next prime is 15000555067. The reversal of 15000555000 is 55500051.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

15000555000 is a modest number, since divided by 555000 gives 15000 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 485019 + ... + 515018.

Almost surely, 2^15000555000 is an apocalyptic number.

15000555000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15000555000 is an abundant number, since it is smaller than the sum of its proper divisors (31861225680).

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

15000555000 is a wasteful number, since it uses less digits than its factorization.

15000555000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000066 (or 1000047 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 21.

The spelling of 15000555000 in words is "fifteen billion, five hundred fifty-five thousand".