25164420377345 has 32 divisors (see below), whose sum is σ = 31864862160000. Its totient is φ = 19025081155584.

The previous prime is 25164420377287. The next prime is 25164420377359. The reversal of 25164420377345 is 54377302446152.

It is a cyclic number.

It is not a de Polignac number, because 25164420377345 - 2²⁴ = 25164403600129 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 104787329 + ... + 105027201.

It is an arithmetic number, because the mean of its divisors is an integer number (995776942500).

Almost surely, 2^{25164420377345} is an apocalyptic number.

It is an amenable number.

25164420377345 is a deficient number, since it is larger than the sum of its proper divisors (6700441782655).

25164420377345 is a wasteful number, since it uses less digits than its factorization.

25164420377345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242609.

The product of its (nonzero) digits is 16934400, while the sum is 53.

The spelling of 25164420377345 in words is "twenty-five trillion, one hundred sixty-four billion, four hundred twenty million, three hundred seventy-seven thousand, three hundred forty-five".