10661520452 has 12 divisors (see below), whose sum is σ = 20353811856. Its totient is φ = 4846145640.

The previous prime is 10661520451. The next prime is 10661520469. The reversal of 10661520452 is 25402516601.

It is a super-2 number, since 2×10661520452² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10661520451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121153598 + ... + 121153685.

It is an arithmetic number, because the mean of its divisors is an integer number (1696150988).

Almost surely, 2^10661520452 is an apocalyptic number.

It is an amenable number.

10661520452 is a deficient number, since it is larger than the sum of its proper divisors (9692291404).

10661520452 is a wasteful number, since it uses less digits than its factorization.

10661520452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242307298 (or 242307296 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 10661520452 in words is "ten billion, six hundred sixty-one million, five hundred twenty thousand, four hundred fifty-two".