216156660456210 has 16 divisors (see below), whose sum is σ = 518775985094976. Its totient is φ = 57641776121648.

The previous prime is 216156660456167. The next prime is 216156660456221. The reversal of 216156660456210 is 12654066651612.

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, 3602611007574 + ... + 3602611007633.

It is an arithmetic number, because the mean of its divisors is an integer number (32423499068436).

Almost surely, 2^{216156660456210} is an apocalyptic number.

216156660456210 is an abundant number, since it is smaller than the sum of its proper divisors (302619324638766).

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

216156660456210 is a wasteful number, since it uses less digits than its factorization.

216156660456210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7205222015217.

The product of its (nonzero) digits is 3110400, while the sum is 51.

The spelling of 216156660456210 in words is "two hundred sixteen trillion, one hundred fifty-six billion, six hundred sixty million, four hundred fifty-six thousand, two hundred ten".