6660423435 has 16 divisors (see below), whose sum is σ = 10815734016. Its totient is φ = 3499207008.

The previous prime is 6660423401. The next prime is 6660423443. The reversal of 6660423435 is 5343240666.

It is not a de Polignac number, because 6660423435 - 2⁷ = 6660423307 is a prime.

It is a super-2 number, since 2×6660423435² = 88722480666994398450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6660423393 and 6660423402.

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, 3312639 + ... + 3314648.

It is an arithmetic number, because the mean of its divisors is an integer number (675983376).

Almost surely, 2^6660423435 is an apocalyptic number.

6660423435 is a deficient number, since it is larger than the sum of its proper divisors (4155310581).

6660423435 is a wasteful number, since it uses less digits than its factorization.

6660423435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6627362.

The product of its (nonzero) digits is 311040, while the sum is 39.

The square root of 6660423435 is about 81611.4173078743. The cubic root of 6660423435 is about 1881.4843636748.

The spelling of 6660423435 in words is "six billion, six hundred sixty million, four hundred twenty-three thousand, four hundred thirty-five".