612146656 has 48 divisors (see below), whose sum is σ = 1371904128. Its totient is φ = 266147200.

The previous prime is 612146629. The next prime is 612146669. The reversal of 612146656 is 656641216.

612146656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29710 + ... + 45901.

It is an arithmetic number, because the mean of its divisors is an integer number (28581336).

Almost surely, 2^612146656 is an apocalyptic number.

It is an amenable number.

612146656 is an abundant number, since it is smaller than the sum of its proper divisors (759757472).

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

612146656 is a wasteful number, since it uses less digits than its factorization.

612146656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75655 (or 75647 counting only the distinct ones).

The product of its digits is 51840, while the sum is 37.

The square root of 612146656 is about 24741.5976848707. The cubic root of 612146656 is about 849.0862873552.

The spelling of 612146656 in words is "six hundred twelve million, one hundred forty-six thousand, six hundred fifty-six".