610662664 has 8 divisors (see below), whose sum is σ = 1144992510. Its totient is φ = 305331328.

The previous prime is 610662659. The next prime is 610662667. The reversal of 610662664 is 466266016.

It can be written as a sum of positive squares in only one way, i.e., 521208900 + 89453764 = 22830^2 + 9458^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (610662667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38166409 + ... + 38166424.

Almost surely, 2^610662664 is an apocalyptic number.

It is an amenable number.

610662664 is a deficient number, since it is larger than the sum of its proper divisors (534329846).

610662664 is a wasteful number, since it uses less digits than its factorization.

610662664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76332839 (or 76332835 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 610662664 is about 24711.5896696267. The cubic root of 610662664 is about 848.3996017758.

The spelling of 610662664 in words is "six hundred ten million, six hundred sixty-two thousand, six hundred sixty-four".