66502612 has 12 divisors (see below), whose sum is σ = 126959616. Its totient is φ = 30228440.

The previous prime is 66502607. The next prime is 66502621. The reversal of 66502612 is 21620566.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 755668 + ... + 755755.

It is an arithmetic number, because the mean of its divisors is an integer number (10579968).

Almost surely, 2^66502612 is an apocalyptic number.

It is an amenable number.

66502612 is a deficient number, since it is larger than the sum of its proper divisors (60457004).

66502612 is a wasteful number, since it uses less digits than its factorization.

66502612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1511438 (or 1511436 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 66502612 is about 8154.9133655729. The cubic root of 66502612 is about 405.1472552977.

The spelling of 66502612 in words is "sixty-six million, five hundred two thousand, six hundred twelve".