6402666236 has 6 divisors (see below), whose sum is σ = 11204665920. Its totient is φ = 3201333116.

The previous prime is 6402666229. The next prime is 6402666247. The reversal of 6402666236 is 6326662046.

It is a super-2 number, since 2×6402666236² = 81988269859228815392, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6402666193 and 6402666202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 800333276 + ... + 800333283.

It is an arithmetic number, because the mean of its divisors is an integer number (1867444320).

Almost surely, 2^6402666236 is an apocalyptic number.

It is an amenable number.

6402666236 is a deficient number, since it is larger than the sum of its proper divisors (4801999684).

6402666236 is a wasteful number, since it uses less digits than its factorization.

6402666236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1600666563 (or 1600666561 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 41.

The square root of 6402666236 is about 80016.6622398110. The cubic root of 6402666236 is about 1856.8933220512.

The spelling of 6402666236 in words is "six billion, four hundred two million, six hundred sixty-six thousand, two hundred thirty-six".