125499156659 has 2 divisors, whose sum is σ = 125499156660. Its totient is φ = 125499156658.

The previous prime is 125499156637. The next prime is 125499156697. The reversal of 125499156659 is 956651994521.

It is a weak prime.

It is an emirp because it is prime and its reverse (956651994521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125499156659 - 2¹² = 125499152563 is a prime.

It is not a weakly prime, because it can be changed into another prime (125499156619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62749578329 + 62749578330.

It is an arithmetic number, because the mean of its divisors is an integer number (62749578330).

Almost surely, 2^125499156659 is an apocalyptic number.

125499156659 is a deficient number, since it is larger than the sum of its proper divisors (1).

125499156659 is an equidigital number, since it uses as much as digits as its factorization.

125499156659 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26244000, while the sum is 62.

The spelling of 125499156659 in words is "one hundred twenty-five billion, four hundred ninety-nine million, one hundred fifty-six thousand, six hundred fifty-nine".