11612570945 has 4 divisors (see below), whose sum is σ = 13935085140. Its totient is φ = 9290056752.

The previous prime is 11612570941. The next prime is 11612570969. The reversal of 11612570945 is 54907521611.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54907521611 = 353 ⋅155545387.

It can be written as a sum of positive squares in 2 ways, for example, as 8850858241 + 2761712704 = 94079^2 + 52552^2 .

It is a cyclic number.

It is not a de Polignac number, because 11612570945 - 2² = 11612570941 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11612570941) 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, 1161257090 + ... + 1161257099.

It is an arithmetic number, because the mean of its divisors is an integer number (3483771285).

Almost surely, 2^11612570945 is an apocalyptic number.

It is an amenable number.

11612570945 is a deficient number, since it is larger than the sum of its proper divisors (2322514195).

11612570945 is an equidigital number, since it uses as much as digits as its factorization.

11612570945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2322514194.

The product of its (nonzero) digits is 75600, while the sum is 41.

The spelling of 11612570945 in words is "eleven billion, six hundred twelve million, five hundred seventy thousand, nine hundred forty-five".