216144406602 has 12 divisors (see below), whose sum is σ = 468312881010. Its totient is φ = 72048135528.

The previous prime is 216144406589. The next prime is 216144406651. The reversal of 216144406602 is 206604441612.

216144406602 is a `hidden beast` number, since 2 + 1 + 6 + 1 + 4 + 4 + 40 + 6 + 602 = 666.

It can be written as a sum of positive squares in only one way, i.e., 212134857561 + 4009549041 = 460581^2 + 63321^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6004011277 + ... + 6004011312.

Almost surely, 2^216144406602 is an apocalyptic number.

216144406602 is an abundant number, since it is smaller than the sum of its proper divisors (252168474408).

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

216144406602 is a wasteful number, since it uses less digits than its factorization.

216144406602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12008022597 (or 12008022594 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The spelling of 216144406602 in words is "two hundred sixteen billion, one hundred forty-four million, four hundred six thousand, six hundred two".