66507433100 has 18 divisors (see below), whose sum is σ = 144321130044. Its totient is φ = 26602973200.

The previous prime is 66507433093. The next prime is 66507433117. The reversal of 66507433100 is 133470566.

It is a super-2 number, since 2×66507433100² (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 (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 332537066 + ... + 332537265.

It is an arithmetic number, because the mean of its divisors is an integer number (8017840558).

Almost surely, 2^66507433100 is an apocalyptic number.

It is an amenable number.

66507433100 is an abundant number, since it is smaller than the sum of its proper divisors (77813696944).

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

66507433100 is a wasteful number, since it uses less digits than its factorization.

66507433100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665074345 (or 665074338 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 35.

The spelling of 66507433100 in words is "sixty-six billion, five hundred seven million, four hundred thirty-three thousand, one hundred".