16550072506 has 16 divisors (see below), whose sum is σ = 27452924928. Its totient is φ = 7419708000.

The previous prime is 16550072491. The next prime is 16550072551. The reversal of 16550072506 is 60527005561.

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, 5150970 + ... + 5154181.

It is an arithmetic number, because the mean of its divisors is an integer number (1715807808).

Almost surely, 2^16550072506 is an apocalyptic number.

16550072506 is a deficient number, since it is larger than the sum of its proper divisors (10902852422).

16550072506 is a wasteful number, since it uses less digits than its factorization.

16550072506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10305237.

The product of its (nonzero) digits is 63000, while the sum is 37.

The spelling of 16550072506 in words is "sixteen billion, five hundred fifty million, seventy-two thousand, five hundred six".