6620040662 has 16 divisors (see below), whose sum is σ = 10254227280. Its totient is φ = 3203377632.

The previous prime is 6620040649. The next prime is 6620040671. The reversal of 6620040662 is 2660400266.

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, 343733 + ... + 362480.

It is an arithmetic number, because the mean of its divisors is an integer number (640889205).

Almost surely, 2^6620040662 is an apocalyptic number.

6620040662 is a deficient number, since it is larger than the sum of its proper divisors (3634186618).

6620040662 is a wasteful number, since it uses less digits than its factorization.

6620040662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706367.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 6620040662 is about 81363.6323058404. The cubic root of 6620040662 is about 1877.6741138158.

The spelling of 6620040662 in words is "six billion, six hundred twenty million, forty thousand, six hundred sixty-two".