66099164 has 12 divisors (see below), whose sum is σ = 117258624. Its totient is φ = 32596704.

The previous prime is 66099139. The next prime is 66099167. The reversal of 66099164 is 46199066.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66099167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112892 + ... + 113475.

It is an arithmetic number, because the mean of its divisors is an integer number (9771552).

Almost surely, 2^66099164 is an apocalyptic number.

It is an amenable number.

66099164 is a deficient number, since it is larger than the sum of its proper divisors (51159460).

66099164 is a wasteful number, since it uses less digits than its factorization.

66099164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226444 (or 226442 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 66099164 is about 8130.1392362001. The cubic root of 66099164 is about 404.3262975107.

The spelling of 66099164 in words is "sixty-six million, ninety-nine thousand, one hundred sixty-four".