10645256031967 has 2 divisors, whose sum is σ = 10645256031968. Its totient is φ = 10645256031966.

The previous prime is 10645256031919. The next prime is 10645256032027. The reversal of 10645256031967 is 76913065254601.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10645256031967 is a prime.

It is a super-2 number, since 2×10645256031967² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10645256031467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5322628015983 + 5322628015984.

It is an arithmetic number, because the mean of its divisors is an integer number (5322628015984).

Almost surely, 2^{10645256031967} is an apocalyptic number.

10645256031967 is a deficient number, since it is larger than the sum of its proper divisors (1).

10645256031967 is an equidigital number, since it uses as much as digits as its factorization.

10645256031967 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8164800, while the sum is 55.

The spelling of 10645256031967 in words is "ten trillion, six hundred forty-five billion, two hundred fifty-six million, thirty-one thousand, nine hundred sixty-seven".