66512350 has 48 divisors (see below), whose sum is σ = 132781680. Its totient is φ = 24710400.

The previous prime is 66512323. The next prime is 66512393. The reversal of 66512350 is 5321566.

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 23 ways as a sum of consecutive naturals, for example, 49690 + ... + 51010.

It is an arithmetic number, because the mean of its divisors is an integer number (2766285).

Almost surely, 2^66512350 is an apocalyptic number.

66512350 is a deficient number, since it is larger than the sum of its proper divisors (66269330).

66512350 is a wasteful number, since it uses less digits than its factorization.

66512350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1405 (or 1400 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 66512350 is about 8155.5104070806. The cubic root of 66512350 is about 405.1670296158.

The spelling of 66512350 in words is "sixty-six million, five hundred twelve thousand, three hundred fifty".