25140163145320 has 64 divisors (see below), whose sum is σ = 56639526229440. Its totient is φ = 10042883366400.

The previous prime is 25140163145311. The next prime is 25140163145389. The reversal of 25140163145320 is 2354136104152.

It is a self number, because there is not a number n which added to its sum of digits gives 25140163145320.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 600800319 + ... + 600842161.

It is an arithmetic number, because the mean of its divisors is an integer number (884992597335).

Almost surely, 2^{25140163145320} is an apocalyptic number.

25140163145320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25140163145320 is an abundant number, since it is smaller than the sum of its proper divisors (31499363084120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25140163145320 is a wasteful number, since it uses less digits than its factorization.

25140163145320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61186 (or 61182 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

Adding to 25140163145320 its reverse (2354136104152), we get a palindrome (27494299249472).

The spelling of 25140163145320 in words is "twenty-five trillion, one hundred forty billion, one hundred sixty-three million, one hundred forty-five thousand, three hundred twenty".