5266630644 has 48 divisors (see below), whose sum is σ = 13428258816. Its totient is φ = 1593295200.

The previous prime is 5266630619. The next prime is 5266630661. The reversal of 5266630644 is 4460366625.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 5266630596 and 5266630605.

It is a congruent number.

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, 47259 + ... + 112989.

It is an arithmetic number, because the mean of its divisors is an integer number (279755392).

Almost surely, 2^5266630644 is an apocalyptic number.

It is an amenable number.

5266630644 is an abundant number, since it is smaller than the sum of its proper divisors (8161628172).

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

5266630644 is a wasteful number, since it uses less digits than its factorization.

5266630644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66356 (or 66354 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 42.

The square root of 5266630644 is about 72571.5553367847. Note that the first 3 decimals coincide. The cubic root of 5266630644 is about 1739.8465804749.

The spelling of 5266630644 in words is "five billion, two hundred sixty-six million, six hundred thirty thousand, six hundred forty-four".