6456664412 has 12 divisors (see below), whose sum is σ = 12326359416. Its totient is φ = 2934847440.

The previous prime is 6456664367. The next prime is 6456664453. The reversal of 6456664412 is 2144666546.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 146742373 = 6456664412 / (6 + 4 + 5 + 6 + 6 + 6 + 4 + 4 + 1 + 2).

It is a congruent 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, 73371143 + ... + 73371230.

It is an arithmetic number, because the mean of its divisors is an integer number (1027196618).

Almost surely, 2^6456664412 is an apocalyptic number.

It is an amenable number.

6456664412 is a deficient number, since it is larger than the sum of its proper divisors (5869695004).

6456664412 is a wasteful number, since it uses less digits than its factorization.

6456664412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146742388 (or 146742386 counting only the distinct ones).

The product of its digits is 829440, while the sum is 44.

The square root of 6456664412 is about 80353.3721258791. The cubic root of 6456664412 is about 1862.0988766787.

The spelling of 6456664412 in words is "six billion, four hundred fifty-six million, six hundred sixty-four thousand, four hundred twelve".