30660130160557 has 2 divisors, whose sum is σ = 30660130160558. Its totient is φ = 30660130160556.

The previous prime is 30660130160549. The next prime is 30660130160623. The reversal of 30660130160557 is 75506103106603.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15643179881316 + 15016950279241 = 3955146^2 + 3875171^2 .

It is a cyclic number.

It is not a de Polignac number, because 30660130160557 - 2³ = 30660130160549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30660130160507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15330065080278 + 15330065080279.

It is an arithmetic number, because the mean of its divisors is an integer number (15330065080279).

Almost surely, 2^{30660130160557} is an apocalyptic number.

It is an amenable number.

30660130160557 is a deficient number, since it is larger than the sum of its proper divisors (1).

30660130160557 is an equidigital number, since it uses as much as digits as its factorization.

30660130160557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 340200, while the sum is 43.

The spelling of 30660130160557 in words is "thirty trillion, six hundred sixty billion, one hundred thirty million, one hundred sixty thousand, five hundred fifty-seven".