6623663534 has 4 divisors (see below), whose sum is σ = 9935495304. Its totient is φ = 3311831766.

The previous prime is 6623663513. The next prime is 6623663591. The reversal of 6623663534 is 4353663266.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4353663266 = 2 ⋅2176831633.

It is a super-2 number, since 2×6623663534² = 87745837223282738312, which contains 22 as substring.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 1655915882 + ... + 1655915885.

It is an arithmetic number, because the mean of its divisors is an integer number (2483873826).

Almost surely, 2^6623663534 is an apocalyptic number.

6623663534 is a deficient number, since it is larger than the sum of its proper divisors (3311831770).

6623663534 is a wasteful number, since it uses less digits than its factorization.

6623663534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3311831769.

The product of its digits is 1399680, while the sum is 44.

The square root of 6623663534 is about 81385.8927210361. The cubic root of 6623663534 is about 1878.0165755808.

The spelling of 6623663534 in words is "six billion, six hundred twenty-three million, six hundred sixty-three thousand, five hundred thirty-four".