66707373400 has 48 divisors (see below), whose sum is σ = 155116355400. Its totient is φ = 26679214080.

The previous prime is 66707373331. The next prime is 66707373427. The reversal of 66707373400 is 437370766.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1741656 + ... + 1779544.

Almost surely, 2^66707373400 is an apocalyptic number.

It is an amenable number.

66707373400 is an abundant number, since it is smaller than the sum of its proper divisors (88408982000).

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

66707373400 is a wasteful number, since it uses less digits than its factorization.

66707373400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46708 (or 46699 counting only the distinct ones).

The product of its (nonzero) digits is 444528, while the sum is 43.

The spelling of 66707373400 in words is "sixty-six billion, seven hundred seven million, three hundred seventy-three thousand, four hundred".