66677833305 has 48 divisors (see below), whose sum is σ = 116482544256. Its totient is φ = 35282822400.

The previous prime is 66677833291. The next prime is 66677833307. The reversal of 66677833305 is 50333877666.

It is not a de Polignac number, because 66677833305 - 2⁸ = 66677833049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66677833307) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5994429 + ... + 6005541.

It is an arithmetic number, because the mean of its divisors is an integer number (2426719672).

Almost surely, 2^66677833305 is an apocalyptic number.

It is an amenable number.

66677833305 is a deficient number, since it is larger than the sum of its proper divisors (49804710951).

66677833305 is a wasteful number, since it uses less digits than its factorization.

66677833305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12158 (or 12155 counting only the distinct ones).

The product of its (nonzero) digits is 11430720, while the sum is 54.

The spelling of 66677833305 in words is "sixty-six billion, six hundred seventy-seven million, eight hundred thirty-three thousand, three hundred five".