25550680168 has 32 divisors (see below), whose sum is σ = 52093641600. Its totient is φ = 11678125248.

The previous prime is 25550680147. The next prime is 25550680193. The reversal of 25550680168 is 86108605552.

It is a happy number.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1181908 + ... + 1203331.

It is an arithmetic number, because the mean of its divisors is an integer number (1627926300).

Almost surely, 2^25550680168 is an apocalyptic number.

It is an amenable number.

25550680168 is an abundant number, since it is smaller than the sum of its proper divisors (26542961432).

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

25550680168 is a wasteful number, since it uses less digits than its factorization.

25550680168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2385361 (or 2385357 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 46.

The spelling of 25550680168 in words is "twenty-five billion, five hundred fifty million, six hundred eighty thousand, one hundred sixty-eight".