10645256029957 has 2 divisors, whose sum is σ = 10645256029958. Its totient is φ = 10645256029956.

The previous prime is 10645256029949. The next prime is 10645256029979. The reversal of 10645256029957 is 75992065254601.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5877841429476 + 4767414600481 = 2424426^2 + 2183441^2 .

It is an emirp because it is prime and its reverse (75992065254601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10645256029957 - 2³ = 10645256029949 is a prime.

It is a super-2 number, since 2×10645256029957² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10645256029895 and 10645256029904.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10645256029937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5322628014978 + 5322628014979.

It is an arithmetic number, because the mean of its divisors is an integer number (5322628014979).

Almost surely, 2^{10645256029957} is an apocalyptic number.

It is an amenable number.

10645256029957 is a deficient number, since it is larger than the sum of its proper divisors (1).

10645256029957 is an equidigital number, since it uses as much as digits as its factorization.

10645256029957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824000, while the sum is 61.

The spelling of 10645256029957 in words is "ten trillion, six hundred forty-five billion, two hundred fifty-six million, twenty-nine thousand, nine hundred fifty-seven".