66907441320 has 64 divisors (see below), whose sum is σ = 211286664000. Its totient is φ = 16902931968.

The previous prime is 66907441313. The next prime is 66907441351. The reversal of 66907441320 is 2314470966.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14670405 + ... + 14674964.

It is an arithmetic number, because the mean of its divisors is an integer number (3301354125).

Almost surely, 2^66907441320 is an apocalyptic number.

66907441320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66907441320 is an abundant number, since it is smaller than the sum of its proper divisors (144379222680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66907441320 is a wasteful number, since it uses less digits than its factorization.

66907441320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29345402 (or 29345398 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 42.

The spelling of 66907441320 in words is "sixty-six billion, nine hundred seven million, four hundred forty-one thousand, three hundred twenty".