10520961597 has 12 divisors (see below), whose sum is σ = 15454520640. Its totient is φ = 6895093128.

The previous prime is 10520961593. The next prime is 10520961617. The reversal of 10520961597 is 79516902501.

10520961597 is a `hidden beast` number, since 1 + 0 + 5 + 20 + 9 + 615 + 9 + 7 = 666.

It is not a de Polignac number, because 10520961597 - 2² = 10520961593 is a prime.

It is a super-2 number, since 2×10520961597² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10520961593) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9906213 + ... + 9907274.

It is an arithmetic number, because the mean of its divisors is an integer number (1287876720).

Almost surely, 2^10520961597 is an apocalyptic number.

It is an amenable number.

10520961597 is a deficient number, since it is larger than the sum of its proper divisors (4933559043).

10520961597 is a wasteful number, since it uses less digits than its factorization.

10520961597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19813552 (or 19813549 counting only the distinct ones).

The product of its (nonzero) digits is 170100, while the sum is 45.

The spelling of 10520961597 in words is "ten billion, five hundred twenty million, nine hundred sixty-one thousand, five hundred ninety-seven".