669082622780 has 96 divisors (see below), whose sum is σ = 1747816781760. Its totient is φ = 211376148480.

The previous prime is 669082622717. The next prime is 669082622827. The reversal of 669082622780 is 87226280966.

It is a super-2 number, since 2×669082622780² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6832115 + ... + 6929354.

It is an arithmetic number, because the mean of its divisors is an integer number (18206424810).

Almost surely, 2^669082622780 is an apocalyptic number.

It is an amenable number.

669082622780 is an abundant number, since it is smaller than the sum of its proper divisors (1078734158980).

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

669082622780 is a wasteful number, since it uses less digits than its factorization.

669082622780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13761519 (or 13761517 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 56.

The spelling of 669082622780 in words is "six hundred sixty-nine billion, eighty-two million, six hundred twenty-two thousand, seven hundred eighty".