669430377554 has 8 divisors (see below), whose sum is σ = 1056995333040. Its totient is φ = 317098599876.

The previous prime is 669430377533. The next prime is 669430377599. The reversal of 669430377554 is 455773034966.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 669430377493 and 669430377502.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8808294404 + ... + 8808294479.

It is an arithmetic number, because the mean of its divisors is an integer number (132124416630).

Almost surely, 2^669430377554 is an apocalyptic number.

669430377554 is a deficient number, since it is larger than the sum of its proper divisors (387564955486).

669430377554 is a wasteful number, since it uses less digits than its factorization.

669430377554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17616588904.

The product of its (nonzero) digits is 57153600, while the sum is 59.

The spelling of 669430377554 in words is "six hundred sixty-nine billion, four hundred thirty million, three hundred seventy-seven thousand, five hundred fifty-four".