612223664 has 40 divisors (see below), whose sum is σ = 1279053552. Its totient is φ = 282205440.

The previous prime is 612223663. The next prime is 612223741. The reversal of 612223664 is 466322216.

612223664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 612223664.

It is not an unprimeable number, because it can be changed into a prime (612223663) 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, 232274 + ... + 234894.

Almost surely, 2^612223664 is an apocalyptic number.

It is an amenable number.

612223664 is an abundant number, since it is smaller than the sum of its proper divisors (666829888).

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

612223664 is a wasteful number, since it uses less digits than its factorization.

612223664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3765 (or 3759 counting only the distinct ones).

The product of its digits is 20736, while the sum is 32.

The square root of 612223664 is about 24743.1538814275. The cubic root of 612223664 is about 849.1218908577.

The spelling of 612223664 in words is "six hundred twelve million, two hundred twenty-three thousand, six hundred sixty-four".