5361665644 has 12 divisors (see below), whose sum is σ = 9383428264. Its totient is φ = 2680686144.

The previous prime is 5361665587. The next prime is 5361665681. The reversal of 5361665644 is 4465661635.

It is a happy number.

It is a hoax number, since the sum of its digits (46) 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 = 5361665594 and 5361665603.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119044 + ... + 157780.

Almost surely, 2^5361665644 is an apocalyptic number.

It is an amenable number.

5361665644 is a deficient number, since it is larger than the sum of its proper divisors (4021762620).

5361665644 is a wasteful number, since it uses less digits than its factorization.

5361665644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73344 (or 73342 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 46.

The square root of 5361665644 is about 73223.3954689347. The cubic root of 5361665644 is about 1750.2492862836.

The spelling of 5361665644 in words is "five billion, three hundred sixty-one million, six hundred sixty-five thousand, six hundred forty-four".