611206664 has 16 divisors (see below), whose sum is σ = 1182981120. Its totient is φ = 295745040.

The previous prime is 611206643. The next prime is 611206667. The reversal of 611206664 is 466602116.

It is a super-2 number, since 2×611206664² = 747147172236017792, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 611206664.

It is not an unprimeable number, because it can be changed into a prime (611206667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1232024 + ... + 1232519.

It is an arithmetic number, because the mean of its divisors is an integer number (73936320).

Almost surely, 2^611206664 is an apocalyptic number.

It is an amenable number.

611206664 is a deficient number, since it is larger than the sum of its proper divisors (571774456).

611206664 is a wasteful number, since it uses less digits than its factorization.

611206664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2464580 (or 2464576 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 611206664 is about 24722.5942004475. The cubic root of 611206664 is about 848.6514551746.

The spelling of 611206664 in words is "six hundred eleven million, two hundred six thousand, six hundred sixty-four".