16506615052 has 12 divisors (see below), whose sum is σ = 30585786840. Its totient is φ = 7767818816.

The previous prime is 16506615049. The next prime is 16506615061. The reversal of 16506615052 is 25051660561.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121372102 + ... + 121372237.

It is an arithmetic number, because the mean of its divisors is an integer number (2548815570).

Almost surely, 2^16506615052 is an apocalyptic number.

It is an amenable number.

16506615052 is a deficient number, since it is larger than the sum of its proper divisors (14079171788).

16506615052 is a wasteful number, since it uses less digits than its factorization.

16506615052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242744360 (or 242744358 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 37.

The spelling of 16506615052 in words is "sixteen billion, five hundred six million, six hundred fifteen thousand, fifty-two".