215715120157662 has 16 divisors (see below), whose sum is σ = 431430386959872. Its totient is φ = 71905015611800.

The previous prime is 215715120157639. The next prime is 215715120157709. The reversal of 215715120157662 is 266751021517512.

It is a congruent number.

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, 25965043 + ... + 33250769.

It is an arithmetic number, because the mean of its divisors is an integer number (26964399184992).

Almost surely, 2^{215715120157662} is an apocalyptic number.

215715120157662 is an abundant number, since it is smaller than the sum of its proper divisors (215715266802210).

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

215715120157662 is a wasteful number, since it uses less digits than its factorization.

215715120157662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12220383.

The product of its (nonzero) digits is 1764000, while the sum is 51.

The spelling of 215715120157662 in words is "two hundred fifteen trillion, seven hundred fifteen billion, one hundred twenty million, one hundred fifty-seven thousand, six hundred sixty-two".