66113598 has 16 divisors (see below), whose sum is σ = 135801360. Its totient is φ = 21442176.

The previous prime is 66113581. The next prime is 66113603. The reversal of 66113598 is 89531166.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148683 + ... + 149126.

It is an arithmetic number, because the mean of its divisors is an integer number (8487585).

Almost surely, 2^66113598 is an apocalyptic number.

66113598 is an abundant number, since it is smaller than the sum of its proper divisors (69687762).

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

66113598 is a wasteful number, since it uses less digits than its factorization.

66113598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297851.

The product of its digits is 38880, while the sum is 39.

The square root of 66113598 is about 8131.0268724190. The cubic root of 66113598 is about 404.3557261282.

The spelling of 66113598 in words is "sixty-six million, one hundred thirteen thousand, five hundred ninety-eight".