19956329142 has 8 divisors (see below), whose sum is σ = 39912658296. Its totient is φ = 6652109712.

The previous prime is 19956329101. The next prime is 19956329177. The reversal of 19956329142 is 24192365991.

It is a sphenic number, since it is the product of 3 distinct primes.

19956329142 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1663027423 + ... + 1663027434.

It is an arithmetic number, because the mean of its divisors is an integer number (4989082287).

Almost surely, 2^19956329142 is an apocalyptic number.

19956329142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

19956329142 is a wasteful number, since it uses less digits than its factorization.

19956329142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3326054862.

The product of its digits is 1049760, while the sum is 51.

The spelling of 19956329142 in words is "nineteen billion, nine hundred fifty-six million, three hundred twenty-nine thousand, one hundred forty-two".