66133345 has 8 divisors (see below), whose sum is σ = 79985664. Its totient is φ = 52489584.

The previous prime is 66133337. The next prime is 66133351. The reversal of 66133345 is 54333166.

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 66133345 - 2³ = 66133337 is a prime.

It is a Duffinian 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, 51439 + ... + 52708.

It is an arithmetic number, because the mean of its divisors is an integer number (9998208).

Almost surely, 2^66133345 is an apocalyptic number.

It is an amenable number.

66133345 is a deficient number, since it is larger than the sum of its proper divisors (13852319).

66133345 is a wasteful number, since it uses less digits than its factorization.

66133345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104279.

The product of its digits is 19440, while the sum is 31.

The square root of 66133345 is about 8132.2410810305. The cubic root of 66133345 is about 404.3959801653.

The spelling of 66133345 in words is "sixty-six million, one hundred thirty-three thousand, three hundred forty-five".