66624602111 has 8 divisors (see below), whose sum is σ = 67436556384. Its totient is φ = 65817554400.

The previous prime is 66624602089. The next prime is 66624602123. The reversal of 66624602111 is 11120642666.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66624602111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66624602141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1199315 + ... + 1253636.

It is an arithmetic number, because the mean of its divisors is an integer number (8429569548).

Almost surely, 2^66624602111 is an apocalyptic number.

66624602111 is a deficient number, since it is larger than the sum of its proper divisors (811954273).

66624602111 is a wasteful number, since it uses less digits than its factorization.

66624602111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2453281.

The product of its (nonzero) digits is 20736, while the sum is 35.

The spelling of 66624602111 in words is "sixty-six billion, six hundred twenty-four million, six hundred two thousand, one hundred eleven".