612660064 has 12 divisors (see below), whose sum is σ = 1206174564. Its totient is φ = 306330016.

The previous prime is 612660049. The next prime is 612660067. The reversal of 612660064 is 460066216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612660067) 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 as a sum of consecutive naturals, namely, 9572782 + ... + 9572845.

It is an arithmetic number, because the mean of its divisors is an integer number (100514547).

Almost surely, 2^612660064 is an apocalyptic number.

It is an amenable number.

612660064 is a deficient number, since it is larger than the sum of its proper divisors (593514500).

612660064 is a wasteful number, since it uses less digits than its factorization.

612660064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19145637 (or 19145629 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 612660064 is about 24751.9709114244. The cubic root of 612660064 is about 849.3235975237.

The spelling of 612660064 in words is "six hundred twelve million, six hundred sixty thousand, sixty-four".