6650672131 has 2 divisors, whose sum is σ = 6650672132. Its totient is φ = 6650672130.

The previous prime is 6650672123. The next prime is 6650672159. The reversal of 6650672131 is 1312760566.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6650672131 - 2³ = 6650672123 is a prime.

It is a super-2 number, since 2×6650672131² = 88462879588120162322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6650672531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3325336065 + 3325336066.

It is an arithmetic number, because the mean of its divisors is an integer number (3325336066).

Almost surely, 2^6650672131 is an apocalyptic number.

6650672131 is a deficient number, since it is larger than the sum of its proper divisors (1).

6650672131 is an equidigital number, since it uses as much as digits as its factorization.

6650672131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 6650672131 is about 81551.6531469473. The cubic root of 6650672131 is about 1880.5657090188.

The spelling of 6650672131 in words is "six billion, six hundred fifty million, six hundred seventy-two thousand, one hundred thirty-one".