669048297498 has 48 divisors (see below), whose sum is σ = 1699210668480. Its totient is φ = 191152112760.

The previous prime is 669048297481. The next prime is 669048297509. The reversal of 669048297498 is 894792840966.

669048297498 is a `hidden beast` number, since 6 + 6 + 9 + 0 + 48 + 2 + 97 + 498 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15881803 + ... + 15923873.

It is an arithmetic number, because the mean of its divisors is an integer number (35400222260).

Almost surely, 2^669048297498 is an apocalyptic number.

669048297498 is an abundant number, since it is smaller than the sum of its proper divisors (1030162370982).

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

669048297498 is an frugal number, since it uses more digits than its factorization.

669048297498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84160 (or 42083 counting only the distinct ones).

The product of its (nonzero) digits is 376233984, while the sum is 72.

The spelling of 669048297498 in words is "six hundred sixty-nine billion, forty-eight million, two hundred ninety-seven thousand, four hundred ninety-eight".