1623665466 has 32 divisors (see below), whose sum is σ = 3692061120. Its totient is φ = 528634512.

The previous prime is 1623665419. The next prime is 1623665557. The reversal of 1623665466 is 6645663261.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 347305 + ... + 351948.

It is an arithmetic number, because the mean of its divisors is an integer number (115376910).

Almost surely, 2^1623665466 is an apocalyptic number.

1623665466 is an abundant number, since it is smaller than the sum of its proper divisors (2068395654).

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

1623665466 is a wasteful number, since it uses less digits than its factorization.

1623665466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699307 (or 699301 counting only the distinct ones).

The product of its digits is 933120, while the sum is 45.

The square root of 1623665466 is about 40294.7324845320. The cubic root of 1623665466 is about 1175.3454161178.

The spelling of 1623665466 in words is "one billion, six hundred twenty-three million, six hundred sixty-five thousand, four hundred sixty-six".