66730973094 has 36 divisors (see below), whose sum is σ = 150137090844. Its totient is φ = 22243653324.

The previous prime is 66730973083. The next prime is 66730973117. The reversal of 66730973094 is 49037903766.

It is a super-3 number, since 3×66730973094³ (a number of 33 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 66730973094.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2529592 + ... + 2555835.

Almost surely, 2^66730973094 is an apocalyptic number.

66730973094 is an abundant number, since it is smaller than the sum of its proper divisors (83406117750).

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

66730973094 is an frugal number, since it uses more digits than its factorization.

66730973094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5085453 (or 5085432 counting only the distinct ones).

The product of its (nonzero) digits is 5143824, while the sum is 54.

The spelling of 66730973094 in words is "sixty-six billion, seven hundred thirty million, nine hundred seventy-three thousand, ninety-four".