669082755 has 32 divisors (see below), whose sum is σ = 1176295680. Its totient is φ = 322058880.

The previous prime is 669082721. The next prime is 669082763. The reversal of 669082755 is 557280966.

It is a happy number.

It is not a de Polignac number, because 669082755 - 2⁸ = 669082499 is a prime.

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, 8349 + ... + 37521.

It is an arithmetic number, because the mean of its divisors is an integer number (36759240).

Almost surely, 2^669082755 is an apocalyptic number.

669082755 is a deficient number, since it is larger than the sum of its proper divisors (507212925).

669082755 is a wasteful number, since it uses less digits than its factorization.

669082755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29331.

The product of its (nonzero) digits is 907200, while the sum is 48.

The square root of 669082755 is about 25866.6340098591. The cubic root of 669082755 is about 874.6345162038.

The spelling of 669082755 in words is "six hundred sixty-nine million, eighty-two thousand, seven hundred fifty-five".