15105402066 has 16 divisors (see below), whose sum is σ = 30215780064. Its totient is φ = 5034304704.

The previous prime is 15105402049. The next prime is 15105402073. The reversal of 15105402066 is 66020450151.

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, 167271 + ... + 241226.

It is an arithmetic number, because the mean of its divisors is an integer number (1888486254).

Almost surely, 2^15105402066 is an apocalyptic number.

15105402066 is an abundant number, since it is smaller than the sum of its proper divisors (15110377998).

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

15105402066 is a wasteful number, since it uses less digits than its factorization.

15105402066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414665.

The product of its (nonzero) digits is 7200, while the sum is 30.

The spelling of 15105402066 in words is "fifteen billion, one hundred five million, four hundred two thousand, sixty-six".