1157660659 has 2 divisors, whose sum is σ = 1157660660. Its totient is φ = 1157660658.

The previous prime is 1157660641. The next prime is 1157660681. The reversal of 1157660659 is 9560667511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1157660659 - 2¹¹ = 1157658611 is a prime.

It is not a weakly prime, because it can be changed into another prime (1157660159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578830329 + 578830330.

It is an arithmetic number, because the mean of its divisors is an integer number (578830330).

Almost surely, 2^1157660659 is an apocalyptic number.

1157660659 is a deficient number, since it is larger than the sum of its proper divisors (1).

1157660659 is an equidigital number, since it uses as much as digits as its factorization.

1157660659 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 46.

The square root of 1157660659 is about 34024.4126914779. The cubic root of 1157660659 is about 1050.0107811440.

The spelling of 1157660659 in words is "one billion, one hundred fifty-seven million, six hundred sixty thousand, six hundred fifty-nine".