215226316992 has 28 divisors (see below), whose sum is σ = 569452964216. Its totient is φ = 71742105600.

The previous prime is 215226316951. The next prime is 215226316993. The reversal of 215226316992 is 299613622512.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (215226316993) 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, 560485009 + ... + 560485392.

Almost surely, 2^215226316992 is an apocalyptic number.

It is an amenable number.

215226316992 is an abundant number, since it is smaller than the sum of its proper divisors (354226647224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

215226316992 is a wasteful number, since it uses less digits than its factorization.

215226316992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120970416 (or 1120970406 counting only the distinct ones).

The product of its digits is 699840, while the sum is 48.

The spelling of 215226316992 in words is "two hundred fifteen billion, two hundred twenty-six million, three hundred sixteen thousand, nine hundred ninety-two".