20700111937 has 8 divisors (see below), whose sum is σ = 21054801600. Its totient is φ = 20347929360.

The previous prime is 20700111919. The next prime is 20700111997. The reversal of 20700111937 is 73911100702.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20700111937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20700111899 and 20700111908.

It is not an unprimeable number, because it can be changed into a prime (20700111997) 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, 610114 + ... + 643147.

It is an arithmetic number, because the mean of its divisors is an integer number (2631850200).

Almost surely, 2^20700111937 is an apocalyptic number.

It is an amenable number.

20700111937 is a deficient number, since it is larger than the sum of its proper divisors (354689663).

20700111937 is a wasteful number, since it uses less digits than its factorization.

20700111937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253543.

The product of its (nonzero) digits is 2646, while the sum is 31.

The spelling of 20700111937 in words is "twenty billion, seven hundred million, one hundred eleven thousand, nine hundred thirty-seven".