66373271500 has 48 divisors (see below), whose sum is σ = 149957851680. Its totient is φ = 25633809600.

The previous prime is 66373271483. The next prime is 66373271519. The reversal of 66373271500 is 517237366.

It is a super-2 number, since 2×66373271500² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2274234 + ... + 2303233.

It is an arithmetic number, because the mean of its divisors is an integer number (3124121910).

Almost surely, 2^66373271500 is an apocalyptic number.

It is an amenable number.

66373271500 is an abundant number, since it is smaller than the sum of its proper divisors (83584580180).

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

66373271500 is a wasteful number, since it uses less digits than its factorization.

66373271500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4577515 (or 4577503 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 40.

The spelling of 66373271500 in words is "sixty-six billion, three hundred seventy-three million, two hundred seventy-one thousand, five hundred".