25366166652 has 24 divisors (see below), whose sum is σ = 60190905600. Its totient is φ = 8312076976.

The previous prime is 25366166641. The next prime is 25366166717. The reversal of 25366166652 is 25666166352.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17913252 + ... + 17914667.

It is an arithmetic number, because the mean of its divisors is an integer number (2507954400).

Almost surely, 2^25366166652 is an apocalyptic number.

It is an amenable number.

25366166652 is an abundant number, since it is smaller than the sum of its proper divisors (34824738948).

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

25366166652 is a wasteful number, since it uses less digits than its factorization.

25366166652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35827985 (or 35827983 counting only the distinct ones).

The product of its digits is 2332800, while the sum is 48.

The spelling of 25366166652 in words is "twenty-five billion, three hundred sixty-six million, one hundred sixty-six thousand, six hundred fifty-two".