669107488 has 192 divisors, whose sum is σ = 1691746560. Its totient is φ = 253919232.

The previous prime is 669107449. The next prime is 669107533. The reversal of 669107488 is 884701966.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8061495 + ... + 8061577.

It is an arithmetic number, because the mean of its divisors is an integer number (8811180).

Almost surely, 2^669107488 is an apocalyptic number.

669107488 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 669107488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (845873280).

669107488 is an abundant number, since it is smaller than the sum of its proper divisors (1022639072).

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

669107488 is a wasteful number, since it uses less digits than its factorization.

669107488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 49.

The square root of 669107488 is about 25867.1120923848. The cubic root of 669107488 is about 874.6452931810.

The spelling of 669107488 in words is "six hundred sixty-nine million, one hundred seven thousand, four hundred eighty-eight".