19700666011983 has 16 divisors (see below), whose sum is σ = 28659887398656. Its totient is φ = 11937975416640.

The previous prime is 19700666011931. The next prime is 19700666011991. The reversal of 19700666011983 is 38911066600791.

It is not a de Polignac number, because 19700666011983 - 2⁹ = 19700666011471 is a prime.

It is a super-2 number, since 2×19700666011983² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19700666091983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45334635 + ... + 45767132.

It is an arithmetic number, because the mean of its divisors is an integer number (1791242962416).

Almost surely, 2^{19700666011983} is an apocalyptic number.

19700666011983 is a deficient number, since it is larger than the sum of its proper divisors (8959221386673).

19700666011983 is a wasteful number, since it uses less digits than its factorization.

19700666011983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91108334.

The product of its (nonzero) digits is 2939328, while the sum is 57.

The spelling of 19700666011983 in words is "nineteen trillion, seven hundred billion, six hundred sixty-six million, eleven thousand, nine hundred eighty-three".