10573672561 has 4 divisors (see below), whose sum is σ = 10574464932. Its totient is φ = 10572880192.

The previous prime is 10573672547. The next prime is 10573672589. The reversal of 10573672561 is 16527637501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16527637501 = 53 ⋅311842217.

It can be written as a sum of positive squares in 2 ways, for example, as 8564391936 + 2009280625 = 92544^2 + 44825^2 .

It is a cyclic number.

It is not a de Polignac number, because 10573672561 - 2²⁵ = 10540118129 is a prime.

It is a super-2 number, since 2×10573672561² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10573672061) 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, 375820 + ... + 402973.

It is an arithmetic number, because the mean of its divisors is an integer number (2643616233).

Almost surely, 2^10573672561 is an apocalyptic number.

It is an amenable number.

10573672561 is a deficient number, since it is larger than the sum of its proper divisors (792371).

10573672561 is an equidigital number, since it uses as much as digits as its factorization.

10573672561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792370.

The product of its (nonzero) digits is 264600, while the sum is 43.

The spelling of 10573672561 in words is "ten billion, five hundred seventy-three million, six hundred seventy-two thousand, five hundred sixty-one".