669248058782 has 4 divisors (see below), whose sum is σ = 1003872088176. Its totient is φ = 334624029390.

The previous prime is 669248058763. The next prime is 669248058821. The reversal of 669248058782 is 287850842966.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167312014694 + ... + 167312014697.

It is an arithmetic number, because the mean of its divisors is an integer number (250968022044).

Almost surely, 2^669248058782 is an apocalyptic number.

669248058782 is a deficient number, since it is larger than the sum of its proper divisors (334624029394).

669248058782 is a wasteful number, since it uses less digits than its factorization.

669248058782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334624029393.

The product of its (nonzero) digits is 92897280, while the sum is 65.

The spelling of 669248058782 in words is "six hundred sixty-nine billion, two hundred forty-eight million, fifty-eight thousand, seven hundred eighty-two".