66101204 has 24 divisors (see below), whose sum is σ = 124938240. Its totient is φ = 30419424.

The previous prime is 66101201. The next prime is 66101251. The reversal of 66101204 is 40210166.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66101201) 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, 18257 + ... + 21575.

It is an arithmetic number, because the mean of its divisors is an integer number (5205760).

Almost surely, 2^66101204 is an apocalyptic number.

It is an amenable number.

66101204 is a deficient number, since it is larger than the sum of its proper divisors (58837036).

66101204 is a wasteful number, since it uses less digits than its factorization.

66101204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3719 (or 3717 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 66101204 is about 8130.2646943381. The cubic root of 66101204 is about 404.3304570044.

The spelling of 66101204 in words is "sixty-six million, one hundred one thousand, two hundred four".