66089432 has 16 divisors (see below), whose sum is σ = 124278000. Its totient is φ = 32948640.

The previous prime is 66089431. The next prime is 66089447. The reversal of 66089432 is 23498066.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66089431) 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, 9044 + ... + 14627.

It is an arithmetic number, because the mean of its divisors is an integer number (7767375).

Almost surely, 2^66089432 is an apocalyptic number.

It is an amenable number.

66089432 is a deficient number, since it is larger than the sum of its proper divisors (58188568).

66089432 is a wasteful number, since it uses less digits than its factorization.

66089432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24026 (or 24022 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 66089432 is about 8129.5407004332. The cubic root of 66089432 is about 404.3064531011.

The spelling of 66089432 in words is "sixty-six million, eighty-nine thousand, four hundred thirty-two".