6945620660 has 48 divisors (see below), whose sum is σ = 16149309120. Its totient is φ = 2487978240.

The previous prime is 6945620659. The next prime is 6945620683. The reversal of 6945620660 is 660265496.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220865 + ... + 250344.

It is an arithmetic number, because the mean of its divisors is an integer number (336443940).

Almost surely, 2^6945620660 is an apocalyptic number.

It is an amenable number.

6945620660 is an abundant number, since it is smaller than the sum of its proper divisors (9203688460).

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

6945620660 is a wasteful number, since it uses less digits than its factorization.

6945620660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471296 (or 471294 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 44.

The square root of 6945620660 is about 83340.3903278596. The cubic root of 6945620660 is about 1907.9647792973.

The spelling of 6945620660 in words is "six billion, nine hundred forty-five million, six hundred twenty thousand, six hundred sixty".