66087327725 has 12 divisors (see below), whose sum is σ = 85511256096. Its totient is φ = 50571172080.

The previous prime is 66087327673. The next prime is 66087327737. The reversal of 66087327725 is 52772378066.

It is not a de Polignac number, because 66087327725 - 2¹⁸ = 66087065581 is a prime.

It is a Duffinian number.

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, 57466667 + ... + 57467816.

It is an arithmetic number, because the mean of its divisors is an integer number (7125938008).

Almost surely, 2^66087327725 is an apocalyptic number.

It is an amenable number.

66087327725 is a deficient number, since it is larger than the sum of its proper divisors (19423928371).

66087327725 is a wasteful number, since it uses less digits than its factorization.

66087327725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114934516 (or 114934511 counting only the distinct ones).

The product of its (nonzero) digits is 5927040, while the sum is 53.

The spelling of 66087327725 in words is "sixty-six billion, eighty-seven million, three hundred twenty-seven thousand, seven hundred twenty-five".