2512531664361 has 48 divisors (see below), whose sum is σ = 3765169699200. Its totient is φ = 1612608205824.

The previous prime is 2512531664359. The next prime is 2512531664371. The reversal of 2512531664361 is 1634661352152.

It is a happy number.

2512531664361 is a `hidden beast` number, since 2 + 5 + 1 + 2 + 53 + 166 + 436 + 1 = 666.

It is not a de Polignac number, because 2512531664361 - 2¹ = 2512531664359 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2512531664341) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 290562540 + ... + 290571186.

It is an arithmetic number, because the mean of its divisors is an integer number (78441035400).

Almost surely, 2^{2512531664361} is an apocalyptic number.

It is an amenable number.

2512531664361 is a deficient number, since it is larger than the sum of its proper divisors (1252638034839).

2512531664361 is a wasteful number, since it uses less digits than its factorization.

2512531664361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11758 (or 11755 counting only the distinct ones).

The product of its digits is 777600, while the sum is 45.

The spelling of 2512531664361 in words is "two trillion, five hundred twelve billion, five hundred thirty-one million, six hundred sixty-four thousand, three hundred sixty-one".