612666512 has 10 divisors (see below), whose sum is σ = 1187041398. Its totient is φ = 306333248.

The previous prime is 612666511. The next prime is 612666517. The reversal of 612666512 is 215666216.

It can be written as a sum of positive squares in only one way, i.e., 465869056 + 146797456 = 21584^2 + 12116^2 .

It is a super-2 number, since 2×612666512² = 750720509852492288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (612666511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19145813 + ... + 19145844.

Almost surely, 2^612666512 is an apocalyptic number.

It is an amenable number.

612666512 is a deficient number, since it is larger than the sum of its proper divisors (574374886).

612666512 is a wasteful number, since it uses less digits than its factorization.

612666512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38291665 (or 38291659 counting only the distinct ones).

The product of its digits is 25920, while the sum is 35.

The square root of 612666512 is about 24752.1011633356. The cubic root of 612666512 is about 849.3265771093.

The spelling of 612666512 in words is "six hundred twelve million, six hundred sixty-six thousand, five hundred twelve".