66057498 has 32 divisors (see below), whose sum is σ = 158088000. Its totient is φ = 20325168.

The previous prime is 66057479. The next prime is 66057499. The reversal of 66057498 is 89475066.

It is not an unprimeable number, because it can be changed into a prime (66057499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46348 + ... + 47751.

It is an arithmetic number, because the mean of its divisors is an integer number (4940250).

Almost surely, 2^66057498 is an apocalyptic number.

66057498 is an abundant number, since it is smaller than the sum of its proper divisors (92030502).

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

66057498 is a wasteful number, since it uses less digits than its factorization.

66057498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94123 (or 94117 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 66057498 is about 8127.5763915204. The cubic root of 66057498 is about 404.2413231604.

The spelling of 66057498 in words is "sixty-six million, fifty-seven thousand, four hundred ninety-eight".