66737333737338 has 64 divisors (see below), whose sum is σ = 149108640307200. Its totient is φ = 19743088210560.

The previous prime is 66737333737271. The next prime is 66737333737339. The reversal of 66737333737338 is 83373733373766.

It is not an unprimeable number, because it can be changed into a prime (66737333737339) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71444056 + ... + 72372147.

It is an arithmetic number, because the mean of its divisors is an integer number (2329822504800).

Almost surely, 2^{66737333737338} is an apocalyptic number.

66737333737338 is an abundant number, since it is smaller than the sum of its proper divisors (82371306569862).

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

66737333737338 is a wasteful number, since it uses less digits than its factorization.

66737333737338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143816387.

The product of its digits is 1512284256, while the sum is 69.

The spelling of 66737333737338 in words is "sixty-six trillion, seven hundred thirty-seven billion, three hundred thirty-three million, seven hundred thirty-seven thousand, three hundred thirty-eight".