66368490 has 32 divisors (see below), whose sum is σ = 160099200. Its totient is φ = 17607744.

The previous prime is 66368483. The next prime is 66368503. The reversal of 66368490 is 9486366.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 412 + ... + 11528.

It is an arithmetic number, because the mean of its divisors is an integer number (5003100).

Almost surely, 2^66368490 is an apocalyptic number.

66368490 is an abundant number, since it is smaller than the sum of its proper divisors (93730710).

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

66368490 is a wasteful number, since it uses less digits than its factorization.

66368490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11326.

The product of its (nonzero) digits is 186624, while the sum is 42.

The square root of 66368490 is about 8146.6858292191. The cubic root of 66368490 is about 404.8747059456.

The spelling of 66368490 in words is "sixty-six million, three hundred sixty-eight thousand, four hundred ninety".