6120666731 has 2 divisors, whose sum is σ = 6120666732. Its totient is φ = 6120666730.

The previous prime is 6120666719. The next prime is 6120666763. The reversal of 6120666731 is 1376660216.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6120666731 is a prime.

It is a super-2 number, since 2×6120666731² = 74925122463940452722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6120666931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3060333365 + 3060333366.

It is an arithmetic number, because the mean of its divisors is an integer number (3060333366).

Almost surely, 2^6120666731 is an apocalyptic number.

6120666731 is a deficient number, since it is larger than the sum of its proper divisors (1).

6120666731 is an equidigital number, since it uses as much as digits as its factorization.

6120666731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 6120666731 is about 78234.6900741608. The cubic root of 6120666731 is about 1829.2212768653.

The spelling of 6120666731 in words is "six billion, one hundred twenty million, six hundred sixty-six thousand, seven hundred thirty-one".