6633620634 has 16 divisors (see below), whose sum is σ = 13277597472. Its totient is φ = 2209480848.

The previous prime is 6633620633. The next prime is 6633620681. The reversal of 6633620634 is 4360263366.

It is a junction number, because it is equal to n+sod(n) for n = 6633620592 and 6633620601.

It is not an unprimeable number, because it can be changed into a prime (6633620633) 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, 423169 + ... + 438564.

It is an arithmetic number, because the mean of its divisors is an integer number (829849842).

Almost surely, 2^6633620634 is an apocalyptic number.

6633620634 is an abundant number, since it is smaller than the sum of its proper divisors (6643976838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6633620634 is a wasteful number, since it uses less digits than its factorization.

6633620634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863021.

The product of its (nonzero) digits is 279936, while the sum is 39.

The square root of 6633620634 is about 81447.0418984017. The cubic root of 6633620634 is about 1878.9571545839.

The spelling of 6633620634 in words is "six billion, six hundred thirty-three million, six hundred twenty thousand, six hundred thirty-four".