66462028025 has 24 divisors (see below), whose sum is σ = 87229833600. Its totient is φ = 50092862400.

The previous prime is 66462028019. The next prime is 66462028027. The reversal of 66462028025 is 52082026466.

It is not a de Polignac number, because 66462028025 - 2³² = 62167060729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66462028027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 300545 + ... + 472494.

It is an arithmetic number, because the mean of its divisors is an integer number (3634576400).

Almost surely, 2^66462028025 is an apocalyptic number.

It is an amenable number.

66462028025 is a deficient number, since it is larger than the sum of its proper divisors (20767805575).

66462028025 is a wasteful number, since it uses less digits than its factorization.

66462028025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773249 (or 773244 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 41.

The spelling of 66462028025 in words is "sixty-six billion, four hundred sixty-two million, twenty-eight thousand, twenty-five".