1623433066 has 16 divisors (see below), whose sum is σ = 2456846280. Its totient is φ = 804510720.

The previous prime is 1623433061. The next prime is 1623433067. The reversal of 1623433066 is 6603343261.

It can be written as a sum of positive squares in 4 ways, for example, as 1041417441 + 582015625 = 32271^2 + 24125^2 .

It is not an unprimeable number, because it can be changed into a prime (1623433061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122106 + ... + 134746.

Almost surely, 2^1623433066 is an apocalyptic number.

1623433066 is a deficient number, since it is larger than the sum of its proper divisors (833413214).

1623433066 is a wasteful number, since it uses less digits than its factorization.

1623433066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13209.

The product of its (nonzero) digits is 46656, while the sum is 34.

The square root of 1623433066 is about 40291.8486297167. The cubic root of 1623433066 is about 1175.2893365633.

The spelling of 1623433066 in words is "one billion, six hundred twenty-three million, four hundred thirty-three thousand, sixty-six".