6623642126 has 16 divisors (see below), whose sum is σ = 10090710000. Its totient is φ = 3260466048.

The previous prime is 6623642099. The next prime is 6623642147. The reversal of 6623642126 is 6212463266.

It is a self number, because there is not a number n which added to its sum of digits gives 6623642126.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64676 + ... + 132023.

It is an arithmetic number, because the mean of its divisors is an integer number (630669375).

Almost surely, 2^6623642126 is an apocalyptic number.

6623642126 is a deficient number, since it is larger than the sum of its proper divisors (3467067874).

6623642126 is a wasteful number, since it uses less digits than its factorization.

6623642126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196963.

The product of its digits is 124416, while the sum is 38.

The square root of 6623642126 is about 81385.7611993646. The cubic root of 6623642126 is about 1878.0145522986.

The spelling of 6623642126 in words is "six billion, six hundred twenty-three million, six hundred forty-two thousand, one hundred twenty-six".