129515670611 has 2 divisors, whose sum is σ = 129515670612. Its totient is φ = 129515670610.

The previous prime is 129515670593. The next prime is 129515670619. The reversal of 129515670611 is 116076515921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 129515670611 - 2⁶ = 129515670547 is a prime.

It is a super-2 number, since 2×129515670611² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (129515670619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64757835305 + 64757835306.

It is an arithmetic number, because the mean of its divisors is an integer number (64757835306).

Almost surely, 2^129515670611 is an apocalyptic number.

129515670611 is a deficient number, since it is larger than the sum of its proper divisors (1).

129515670611 is an equidigital number, since it uses as much as digits as its factorization.

129515670611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 113400, while the sum is 44.

The spelling of 129515670611 in words is "one hundred twenty-nine billion, five hundred fifteen million, six hundred seventy thousand, six hundred eleven".