66042104450 has 144 divisors (see below), whose sum is σ = 145673515584. Its totient is φ = 22204828800.

The previous prime is 66042104431. The next prime is 66042104467. The reversal of 66042104450 is 5440124066.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 96693809 + ... + 96694491.

It is an arithmetic number, because the mean of its divisors is an integer number (1011621636).

Almost surely, 2^66042104450 is an apocalyptic number.

66042104450 is an abundant number, since it is smaller than the sum of its proper divisors (79631411134).

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

66042104450 is a wasteful number, since it uses less digits than its factorization.

66042104450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1417 (or 1405 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The spelling of 66042104450 in words is "sixty-six billion, forty-two million, one hundred four thousand, four hundred fifty".