1669530456 has 96 divisors (see below), whose sum is σ = 5192366400. Its totient is φ = 479286720.

The previous prime is 1669530449. The next prime is 1669530487. The reversal of 1669530456 is 6540359661.

1669530456 is a `hidden beast` number, since 1 + 6 + 69 + 530 + 4 + 56 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40426 + ... + 70521.

It is an arithmetic number, because the mean of its divisors is an integer number (54087150).

Almost surely, 2^1669530456 is an apocalyptic number.

It is an amenable number.

1669530456 is an abundant number, since it is smaller than the sum of its proper divisors (3522835944).

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

1669530456 is a wasteful number, since it uses less digits than its factorization.

1669530456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110989 (or 110982 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 45.

The square root of 1669530456 is about 40859.8881055737. Note that the first 3 decimals coincide. The cubic root of 1669530456 is about 1186.3097924597.

The spelling of 1669530456 in words is "one billion, six hundred sixty-nine million, five hundred thirty thousand, four hundred fifty-six".