216525162406 has 16 divisors (see below), whose sum is σ = 373895382816. Its totient is φ = 92119150656.

The previous prime is 216525162397. The next prime is 216525162421. The reversal of 216525162406 is 604261525612.

It is a happy number.

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, 56443641 + ... + 56447476.

It is an arithmetic number, because the mean of its divisors is an integer number (23368461426).

Almost surely, 2^216525162406 is an apocalyptic number.

216525162406 is a deficient number, since it is larger than the sum of its proper divisors (157370220410).

216525162406 is a wasteful number, since it uses less digits than its factorization.

216525162406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112891263.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 216525162406 in words is "two hundred sixteen billion, five hundred twenty-five million, one hundred sixty-two thousand, four hundred six".