65660475031 has 2 divisors, whose sum is σ = 65660475032. Its totient is φ = 65660475030.

The previous prime is 65660475029. The next prime is 65660475107. The reversal of 65660475031 is 13057406656.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65660475031 - 2¹ = 65660475029 is a prime.

It is a super-2 number, since 2×65660475031² (a number of 22 digits) contains 22 as substring.

Together with 65660475029, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65660475431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32830237515 + 32830237516.

It is an arithmetic number, because the mean of its divisors is an integer number (32830237516).

Almost surely, 2^65660475031 is an apocalyptic number.

65660475031 is a deficient number, since it is larger than the sum of its proper divisors (1).

65660475031 is an equidigital number, since it uses as much as digits as its factorization.

65660475031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 453600, while the sum is 43.

The spelling of 65660475031 in words is "sixty-five billion, six hundred sixty million, four hundred seventy-five thousand, thirty-one".