6660038590 has 32 divisors (see below), whose sum is σ = 12205624320. Its totient is φ = 2615776800.

The previous prime is 6660038573. The next prime is 6660038629. The reversal of 6660038590 is 958300666.

It is a super-2 number, since 2×6660038590² = 88712228040578376200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 531295 + ... + 543685.

It is an arithmetic number, because the mean of its divisors is an integer number (381425760).

Almost surely, 2^6660038590 is an apocalyptic number.

6660038590 is a deficient number, since it is larger than the sum of its proper divisors (5545585730).

6660038590 is a wasteful number, since it uses less digits than its factorization.

6660038590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13368.

The product of its (nonzero) digits is 233280, while the sum is 43.

The square root of 6660038590 is about 81609.0594848391. The cubic root of 6660038590 is about 1881.4481250481.

The spelling of 6660038590 in words is "six billion, six hundred sixty million, thirty-eight thousand, five hundred ninety".