215669148272 has 20 divisors (see below), whose sum is σ = 417890995080. Its totient is φ = 107826310848.

The previous prime is 215669148271. The next prime is 215669148341. The reversal of 215669148272 is 272841966512.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215669148271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 298343 + ... + 721350.

It is an arithmetic number, because the mean of its divisors is an integer number (20894549754).

Almost surely, 2^215669148272 is an apocalyptic number.

It is an amenable number.

215669148272 is a deficient number, since it is larger than the sum of its proper divisors (202221846808).

215669148272 is a wasteful number, since it uses less digits than its factorization.

215669148272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032920 (or 1032914 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 53.

The spelling of 215669148272 in words is "two hundred fifteen billion, six hundred sixty-nine million, one hundred forty-eight thousand, two hundred seventy-two".