66115498 has 8 divisors (see below), whose sum is σ = 102372480. Its totient is φ = 31991340.

The previous prime is 66115487. The next prime is 66115507. The reversal of 66115498 is 89451166.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 66115498.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 533128 + ... + 533251.

It is an arithmetic number, because the mean of its divisors is an integer number (12796560).

Almost surely, 2^66115498 is an apocalyptic number.

66115498 is a deficient number, since it is larger than the sum of its proper divisors (36256982).

66115498 is a wasteful number, since it uses less digits than its factorization.

66115498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066412.

The product of its digits is 51840, while the sum is 40.

The square root of 66115498 is about 8131.1437079909. The cubic root of 66115498 is about 404.3595996052.

The spelling of 66115498 in words is "sixty-six million, one hundred fifteen thousand, four hundred ninety-eight".