215647162655 has 16 divisors (see below), whose sum is σ = 275813325504. Its totient is φ = 161294323200.

The previous prime is 215647162649. The next prime is 215647162667. The reversal of 215647162655 is 556261746512.

It is not a de Polignac number, because 215647162655 - 2³² = 211352195359 is a prime.

It is a super-2 number, since 2×215647162655² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

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, 8387912 + ... + 8413581.

It is an arithmetic number, because the mean of its divisors is an integer number (17238332844).

Almost surely, 2^215647162655 is an apocalyptic number.

215647162655 is a deficient number, since it is larger than the sum of its proper divisors (60166162849).

215647162655 is a wasteful number, since it uses less digits than its factorization.

215647162655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16801666.

The product of its digits is 3024000, while the sum is 50.

The spelling of 215647162655 in words is "two hundred fifteen billion, six hundred forty-seven million, one hundred sixty-two thousand, six hundred fifty-five".