216025615628 has 12 divisors (see below), whose sum is σ = 379128052800. Its totient is φ = 107703314832.

The previous prime is 216025615517. The next prime is 216025615639. The reversal of 216025615628 is 826516520612.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77371676 + ... + 77374467.

It is an arithmetic number, because the mean of its divisors is an integer number (31594004400).

Almost surely, 2^216025615628 is an apocalyptic number.

It is an amenable number.

216025615628 is a deficient number, since it is larger than the sum of its proper divisors (163102437172).

216025615628 is a wasteful number, since it uses less digits than its factorization.

216025615628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154746496 (or 154746494 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 44.

The spelling of 216025615628 in words is "two hundred sixteen billion, twenty-five million, six hundred fifteen thousand, six hundred twenty-eight".