6120666157 has 2 divisors, whose sum is σ = 6120666158. Its totient is φ = 6120666156.

The previous prime is 6120666143. The next prime is 6120666199. The reversal of 6120666157 is 7516660216.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5240891236 + 879774921 = 72394^2 + 29661^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6120666157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6120666107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3060333078 + 3060333079.

It is an arithmetic number, because the mean of its divisors is an integer number (3060333079).

Almost surely, 2^6120666157 is an apocalyptic number.

It is an amenable number.

6120666157 is a deficient number, since it is larger than the sum of its proper divisors (1).

6120666157 is an equidigital number, since it uses as much as digits as its factorization.

6120666157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 6120666157 is about 78234.6864057114. The cubic root of 6120666157 is about 1829.2212196835.

The spelling of 6120666157 in words is "six billion, one hundred twenty million, six hundred sixty-six thousand, one hundred fifty-seven".