5664449640178 has 16 divisors (see below), whose sum is σ = 9710674476480. Its totient is φ = 2427573929616.

The previous prime is 5664449640167. The next prime is 5664449640229. The reversal of 5664449640178 is 8710469444665.

It is a happy number.

It is a super-2 number, since 2×5664449640178² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3197008 + ... + 4642171.

It is an arithmetic number, because the mean of its divisors is an integer number (606917154780).

Almost surely, 2^{5664449640178} is an apocalyptic number.

5664449640178 is a deficient number, since it is larger than the sum of its proper divisors (4046224836302).

5664449640178 is a wasteful number, since it uses less digits than its factorization.

5664449640178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7890801.

The product of its (nonzero) digits is 139345920, while the sum is 64.

The spelling of 5664449640178 in words is "five trillion, six hundred sixty-four billion, four hundred forty-nine million, six hundred forty thousand, one hundred seventy-eight".