66612485 has 8 divisors (see below), whose sum is σ = 83410560. Its totient is φ = 50972944.

The previous prime is 66612479. The next prime is 66612493. The reversal of 66612485 is 58421666.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66612485 - 2⁶ = 66612421 is a prime.

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, 289505 + ... + 289734.

It is an arithmetic number, because the mean of its divisors is an integer number (10426320).

Almost surely, 2^66612485 is an apocalyptic number.

It is an amenable number.

66612485 is a deficient number, since it is larger than the sum of its proper divisors (16798075).

66612485 is a wasteful number, since it uses less digits than its factorization.

66612485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579267.

The product of its digits is 69120, while the sum is 38.

The square root of 66612485 is about 8161.6471989421. The cubic root of 66612485 is about 405.3702553190.

The spelling of 66612485 in words is "sixty-six million, six hundred twelve thousand, four hundred eighty-five".