15381328966 has 32 divisors (see below), whose sum is σ = 24123018240. Its totient is φ = 7346191776.

The previous prime is 15381328957. The next prime is 15381328987. The reversal of 15381328966 is 66982318351.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6968235 + ... + 6970441.

It is an arithmetic number, because the mean of its divisors is an integer number (753844320).

Almost surely, 2^15381328966 is an apocalyptic number.

15381328966 is a deficient number, since it is larger than the sum of its proper divisors (8741689274).

15381328966 is a wasteful number, since it uses less digits than its factorization.

15381328966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3468.

The product of its digits is 1866240, while the sum is 52.

The spelling of 15381328966 in words is "fifteen billion, three hundred eighty-one million, three hundred twenty-eight thousand, nine hundred sixty-six".