669080518790 has 16 divisors (see below), whose sum is σ = 1206062984880. Its totient is φ = 267250418400.

The previous prime is 669080518787. The next prime is 669080518837. The reversal of 669080518790 is 97815080966.

It is a Curzon number.

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, 47716280 + ... + 47730299.

It is an arithmetic number, because the mean of its divisors is an integer number (75378936555).

Almost surely, 2^669080518790 is an apocalyptic number.

669080518790 is a deficient number, since it is larger than the sum of its proper divisors (536982466090).

669080518790 is a wasteful number, since it uses less digits than its factorization.

669080518790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95447287.

The product of its (nonzero) digits is 6531840, while the sum is 59.

The spelling of 669080518790 in words is "six hundred sixty-nine billion, eighty million, five hundred eighteen thousand, seven hundred ninety".