5668645464 has 32 divisors (see below), whose sum is σ = 15746238000. Its totient is φ = 1889548416.

The previous prime is 5668645453. The next prime is 5668645469. The reversal of 5668645464 is 4645468665.

5668645464 is a `hidden beast` number, since 5 + 66 + 86 + 45 + 464 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 5668645464.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5668645469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13121649 + ... + 13122080.

Almost surely, 2^5668645464 is an apocalyptic number.

5668645464 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

5668645464 is an abundant number, since it is smaller than the sum of its proper divisors (10077592536).

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

5668645464 is a wasteful number, since it uses less digits than its factorization.

5668645464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26243744 (or 26243734 counting only the distinct ones).

The product of its digits is 16588800, while the sum is 54.

The square root of 5668645464 is about 75290.4075164958. The cubic root of 5668645464 is about 1783.0345770549.

The spelling of 5668645464 in words is "five billion, six hundred sixty-eight million, six hundred forty-five thousand, four hundred sixty-four".