66737040334 has 4 divisors (see below), whose sum is σ = 100105560504. Its totient is φ = 33368520166.

The previous prime is 66737040317. The next prime is 66737040367. The reversal of 66737040334 is 43304073766.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16684260082 + ... + 16684260085.

It is an arithmetic number, because the mean of its divisors is an integer number (25026390126).

Almost surely, 2^66737040334 is an apocalyptic number.

66737040334 is a deficient number, since it is larger than the sum of its proper divisors (33368520170).

66737040334 is a wasteful number, since it uses less digits than its factorization.

66737040334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33368520169.

The product of its (nonzero) digits is 762048, while the sum is 43.

The spelling of 66737040334 in words is "sixty-six billion, seven hundred thirty-seven million, forty thousand, three hundred thirty-four".