216259048404 has 36 divisors (see below), whose sum is σ = 624748362784. Its totient is φ = 61788299472.

The previous prime is 216259048393. The next prime is 216259048433. The reversal of 216259048404 is 404840952612.

It is a happy number.

216259048404 is a `hidden beast` number, since 2 + 16 + 2 + 590 + 4 + 8 + 40 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×216259048404² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 216259048404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 429085162 + ... + 429085665.

Almost surely, 2^216259048404 is an apocalyptic number.

It is an amenable number.

216259048404 is an abundant number, since it is smaller than the sum of its proper divisors (408489314380).

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

216259048404 is a wasteful number, since it uses less digits than its factorization.

216259048404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858170844 (or 858170839 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 216259048404 in words is "two hundred sixteen billion, two hundred fifty-nine million, forty-eight thousand, four hundred four".