6665632523 has 8 divisors (see below), whose sum is σ = 7448955696. Its totient is φ = 5911868800.

The previous prime is 6665632481. The next prime is 6665632529. The reversal of 6665632523 is 3252365666.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6665632523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6665632529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7389386 + ... + 7390287.

It is an arithmetic number, because the mean of its divisors is an integer number (931119462).

Almost surely, 2^6665632523 is an apocalyptic number.

6665632523 is a deficient number, since it is larger than the sum of its proper divisors (783323173).

6665632523 is a wasteful number, since it uses less digits than its factorization.

6665632523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14779725.

The product of its digits is 1166400, while the sum is 44.

The square root of 6665632523 is about 81643.3250364045. The cubic root of 6665632523 is about 1881.9747360847.

The spelling of 6665632523 in words is "six billion, six hundred sixty-five million, six hundred thirty-two thousand, five hundred twenty-three".