215660514214101 has 32 divisors (see below), whose sum is σ = 314720877219840. Its totient is φ = 130273049739200.

The previous prime is 215660514214063. The next prime is 215660514214109. The reversal of 215660514214101 is 101412415066512.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 215660514214101 - 2⁷ = 215660514213973 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 215660514214101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215660514214109) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 133674235 + ... + 135277943.

It is an arithmetic number, because the mean of its divisors is an integer number (9835027413120).

Almost surely, 2^{215660514214101} is an apocalyptic number.

It is an amenable number.

215660514214101 is a deficient number, since it is larger than the sum of its proper divisors (99060363005739).

215660514214101 is a wasteful number, since it uses less digits than its factorization.

215660514214101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1617137.

The product of its (nonzero) digits is 57600, while the sum is 39.

The spelling of 215660514214101 in words is "two hundred fifteen trillion, six hundred sixty billion, five hundred fourteen million, two hundred fourteen thousand, one hundred one".