66725124 has 24 divisors (see below), whose sum is σ = 155852928. Its totient is φ = 22218720.

The previous prime is 66725123. The next prime is 66725149. The reversal of 66725124 is 42152766.

It is not an unprimeable number, because it can be changed into a prime (66725123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12514 + ... + 17030.

It is an arithmetic number, because the mean of its divisors is an integer number (6493872).

Almost surely, 2^66725124 is an apocalyptic number.

It is an amenable number.

66725124 is an abundant number, since it is smaller than the sum of its proper divisors (89127804).

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

66725124 is a wasteful number, since it uses less digits than its factorization.

66725124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5755 (or 5753 counting only the distinct ones).

The product of its digits is 20160, while the sum is 33.

The square root of 66725124 is about 8168.5447908425. The cubic root of 66725124 is about 405.5986148508.

The spelling of 66725124 in words is "sixty-six million, seven hundred twenty-five thousand, one hundred twenty-four".