6662513423 has 4 divisors (see below), whose sum is σ = 6694089528. Its totient is φ = 6630937320.

The previous prime is 6662513399. The next prime is 6662513441. The reversal of 6662513423 is 3243152666.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6662513423 - 2⁸ = 6662513167 is a prime.

It is a super-2 number, since 2×6662513423² = 88778170223310353858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6662513443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15787736 + ... + 15788157.

It is an arithmetic number, because the mean of its divisors is an integer number (1673522382).

Almost surely, 2^6662513423 is an apocalyptic number.

6662513423 is a deficient number, since it is larger than the sum of its proper divisors (31576105).

6662513423 is a wasteful number, since it uses less digits than its factorization.

6662513423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31576104.

The product of its digits is 155520, while the sum is 38.

The square root of 6662513423 is about 81624.2208109823. The cubic root of 6662513423 is about 1881.6811413796.

The spelling of 6662513423 in words is "six billion, six hundred sixty-two million, five hundred thirteen thousand, four hundred twenty-three".