20039607118981 has 8 divisors (see below), whose sum is σ = 20606432704704. Its totient is φ = 19476498422880.

The previous prime is 20039607118957. The next prime is 20039607119009. The reversal of 20039607118981 is 18981170693002.

It is a happy number.

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 20039607118981 - 2¹¹ = 20039607116933 is a prime.

It is a super-2 number, since 2×20039607118981² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20039607118901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 929211471 + ... + 929233036.

It is an arithmetic number, because the mean of its divisors is an integer number (2575804088088).

Almost surely, 2^{20039607118981} is an apocalyptic number.

It is an amenable number.

20039607118981 is a deficient number, since it is larger than the sum of its proper divisors (566825585723).

20039607118981 is a wasteful number, since it uses less digits than its factorization.

20039607118981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1858444811.

The product of its (nonzero) digits is 1306368, while the sum is 55.

The spelling of 20039607118981 in words is "twenty trillion, thirty-nine billion, six hundred seven million, one hundred eighteen thousand, nine hundred eighty-one".