19956691614 has 8 divisors (see below), whose sum is σ = 39913383240. Its totient is φ = 6652230536.

The previous prime is 19956691613. The next prime is 19956691639. The reversal of 19956691614 is 41619665991.

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

19956691614 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19956691613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1663057629 + ... + 1663057640.

It is an arithmetic number, because the mean of its divisors is an integer number (4989172905).

Almost surely, 2^19956691614 is an apocalyptic number.

19956691614 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.

19956691614 is a wasteful number, since it uses less digits than its factorization.

19956691614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3326115274.

The product of its digits is 3149280, while the sum is 57.

The spelling of 19956691614 in words is "nineteen billion, nine hundred fifty-six million, six hundred ninety-one thousand, six hundred fourteen".