157676655677 has 2 divisors, whose sum is σ = 157676655678. Its totient is φ = 157676655676.

The previous prime is 157676655671. The next prime is 157676655743. The reversal of 157676655677 is 776556676751.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 157540723396 + 135932281 = 396914^2 + 11659^2 .

It is an emirp because it is prime and its reverse (776556676751) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157676655677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157676655671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78838327838 + 78838327839.

It is an arithmetic number, because the mean of its divisors is an integer number (78838327839).

Almost surely, 2^157676655677 is an apocalyptic number.

It is an amenable number.

157676655677 is a deficient number, since it is larger than the sum of its proper divisors (1).

157676655677 is an equidigital number, since it uses as much as digits as its factorization.

157676655677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 388962000, while the sum is 68.

The spelling of 157676655677 in words is "one hundred fifty-seven billion, six hundred seventy-six million, six hundred fifty-five thousand, six hundred seventy-seven".