16715642655 has 16 divisors (see below), whose sum is σ = 27067259520. Its totient is φ = 8807599008.

The previous prime is 16715642653. The next prime is 16715642681. The reversal of 16715642655 is 55624651761.

It is not a de Polignac number, because 16715642655 - 2¹ = 16715642653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16715642651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6711865 + ... + 6714354.

It is an arithmetic number, because the mean of its divisors is an integer number (1691703720).

Almost surely, 2^16715642655 is an apocalyptic number.

16715642655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16715642655 is a deficient number, since it is larger than the sum of its proper divisors (10351616865).

16715642655 is a wasteful number, since it uses less digits than its factorization.

16715642655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13426310.

The product of its digits is 1512000, while the sum is 48.

The spelling of 16715642655 in words is "sixteen billion, seven hundred fifteen million, six hundred forty-two thousand, six hundred fifty-five".