16506145256 has 16 divisors (see below), whose sum is σ = 30952614240. Its totient is φ = 8252114800.

The previous prime is 16506145237. The next prime is 16506145277. The reversal of 16506145256 is 65254160561.

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, 43646 + ... + 186861.

It is an arithmetic number, because the mean of its divisors is an integer number (1934538390).

Almost surely, 2^16506145256 is an apocalyptic number.

It is an amenable number.

16506145256 is a deficient number, since it is larger than the sum of its proper divisors (14446468984).

16506145256 is a wasteful number, since it uses less digits than its factorization.

16506145256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239464 (or 239460 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 41.

The spelling of 16506145256 in words is "sixteen billion, five hundred six million, one hundred forty-five thousand, two hundred fifty-six".