19956036101 has 8 divisors (see below), whose sum is σ = 20321798400. Its totient is φ = 19592626480.

The previous prime is 19956036077. The next prime is 19956036137. The reversal of 19956036101 is 10163065991.

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

It is a cyclic number.

It is not a de Polignac number, because 19956036101 - 2²² = 19951841797 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19956036701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 571046 + ... + 604983.

It is an arithmetic number, because the mean of its divisors is an integer number (2540224800).

Almost surely, 2^19956036101 is an apocalyptic number.

It is an amenable number.

19956036101 is a deficient number, since it is larger than the sum of its proper divisors (365762299).

19956036101 is a wasteful number, since it uses less digits than its factorization.

19956036101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176339.

The product of its (nonzero) digits is 43740, while the sum is 41.

The spelling of 19956036101 in words is "nineteen billion, nine hundred fifty-six million, thirty-six thousand, one hundred one".