65179117537 has 2 divisors, whose sum is σ = 65179117538. Its totient is φ = 65179117536.

The previous prime is 65179117513. The next prime is 65179117541. The reversal of 65179117537 is 73571197156.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57331992481 + 7847125056 = 239441^2 + 88584^2 .

It is a cyclic number.

It is not a de Polignac number, because 65179117537 - 2¹⁵ = 65179084769 is a prime.

It is not a weakly prime, because it can be changed into another prime (65179117567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32589558768 + 32589558769.

It is an arithmetic number, because the mean of its divisors is an integer number (32589558769).

Almost surely, 2^65179117537 is an apocalyptic number.

It is an amenable number.

65179117537 is a deficient number, since it is larger than the sum of its proper divisors (1).

65179117537 is an equidigital number, since it uses as much as digits as its factorization.

65179117537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1389150, while the sum is 52.

The spelling of 65179117537 in words is "sixty-five billion, one hundred seventy-nine million, one hundred seventeen thousand, five hundred thirty-seven".