19946666225970 has 96 divisors (see below), whose sum is σ = 59903998727040. Its totient is φ = 4551111006720.

The previous prime is 19946666225887. The next prime is 19946666226007. The reversal of 19946666225970 is 7952266664991.

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 47 ways as a sum of consecutive naturals, for example, 592575750 + ... + 592609409.

It is an arithmetic number, because the mean of its divisors is an integer number (623999986740).

Almost surely, 2^{19946666225970} is an apocalyptic number.

19946666225970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19946666225970 is an abundant number, since it is smaller than the sum of its proper divisors (39957332501070).

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

19946666225970 is a wasteful number, since it uses less digits than its factorization.

19946666225970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1185185200 (or 1185185197 counting only the distinct ones).

The product of its (nonzero) digits is 529079040, while the sum is 72.

The spelling of 19946666225970 in words is "nineteen trillion, nine hundred forty-six billion, six hundred sixty-six million, two hundred twenty-five thousand, nine hundred seventy".