204666666402 has 32 divisors (see below), whose sum is σ = 446626269504. Its totient is φ = 62008977600.

The previous prime is 204666666397. The next prime is 204666666469.

204666666402 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×204666666402² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90528 + ... + 646164.

It is an arithmetic number, because the mean of its divisors is an integer number (13957070922).

Almost surely, 2^204666666402 is an apocalyptic number.

204666666402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

204666666402 is an abundant number, since it is smaller than the sum of its proper divisors (241959603102).

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

204666666402 is a wasteful number, since it uses less digits than its factorization.

204666666402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561234.

The product of its (nonzero) digits is 2985984, while the sum is 48.

The spelling of 204666666402 in words is "two hundred four billion, six hundred sixty-six million, six hundred sixty-six thousand, four hundred two".