15005655012 has 24 divisors (see below), whose sum is σ = 35071470112. Its totient is φ = 4993560000.

The previous prime is 15005655001. The next prime is 15005655017. The reversal of 15005655012 is 21055650051.

It is not an unprimeable number, because it can be changed into a prime (15005655017) 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, 1033114 + ... + 1047537.

Almost surely, 2^15005655012 is an apocalyptic number.

15005655012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15005655012 is an abundant number, since it is smaller than the sum of its proper divisors (20065815100).

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

15005655012 is a wasteful number, since it uses less digits than its factorization.

15005655012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2081259 (or 2081257 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 30.

The spelling of 15005655012 in words is "fifteen billion, five million, six hundred fifty-five thousand, twelve".