5001661356 has 24 divisors (see below), whose sum is σ = 11740431360. Its totient is φ = 1657236432.

The previous prime is 5001661319. The next prime is 5001661361. The reversal of 5001661356 is 6531661005.

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 7 ways as a sum of consecutive naturals, for example, 1245916 + ... + 1249923.

It is an arithmetic number, because the mean of its divisors is an integer number (489184640).

Almost surely, 2^5001661356 is an apocalyptic number.

It is an amenable number.

5001661356 is an abundant number, since it is smaller than the sum of its proper divisors (6738770004).

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

5001661356 is a wasteful number, since it uses less digits than its factorization.

5001661356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2496013 (or 2496011 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 5001661356 is about 70722.4247039084. The cubic root of 5001661356 is about 1710.1653176240.

The spelling of 5001661356 in words is "five billion, one million, six hundred sixty-one thousand, three hundred fifty-six".