65151515929 has 2 divisors, whose sum is σ = 65151515930. Its totient is φ = 65151515928.

The previous prime is 65151515917. The next prime is 65151515939. The reversal of 65151515929 is 92951515156.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38042552025 + 27108963904 = 195045^2 + 164648^2 .

It is a cyclic number.

It is not a de Polignac number, because 65151515929 - 2²³ = 65143127321 is a prime.

It is not a weakly prime, because it can be changed into another prime (65151515939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32575757964 + 32575757965.

It is an arithmetic number, because the mean of its divisors is an integer number (32575757965).

Almost surely, 2^65151515929 is an apocalyptic number.

It is an amenable number.

65151515929 is a deficient number, since it is larger than the sum of its proper divisors (1).

65151515929 is an equidigital number, since it uses as much as digits as its factorization.

65151515929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 607500, while the sum is 49.

The spelling of 65151515929 in words is "sixty-five billion, one hundred fifty-one million, five hundred fifteen thousand, nine hundred twenty-nine".