25315201424664 has 48 divisors (see below), whose sum is σ = 68563677588120. Its totient is φ = 8438194477440.

The previous prime is 25315201424609. The next prime is 25315201424671. The reversal of 25315201424664 is 46642410251352.

It is a happy number.

25315201424664 is a `hidden beast` number, since 2 + 5 + 3 + 15 + 201 + 424 + 6 + 6 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1307442 + ... + 7234625.

Almost surely, 2^{25315201424664} is an apocalyptic number.

25315201424664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

25315201424664 is an abundant number, since it is smaller than the sum of its proper divisors (43248476163456).

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

25315201424664 is a wasteful number, since it uses less digits than its factorization.

25315201424664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8583240 (or 8583233 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 45.

The spelling of 25315201424664 in words is "twenty-five trillion, three hundred fifteen billion, two hundred one million, four hundred twenty-four thousand, six hundred sixty-four".