20117667660662 has 64 divisors (see below), whose sum is σ = 36113096388096. Its totient is φ = 8285053109760.

The previous prime is 20117667660619. The next prime is 20117667660691. The reversal of 20117667660662 is 26606676671102.

It is a junction number, because it is equal to n+sod(n) for n = 20117667660598 and 20117667660607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 306953 + ... + 6350555.

It is an arithmetic number, because the mean of its divisors is an integer number (564267131064).

Almost surely, 2^{20117667660662} is an apocalyptic number.

20117667660662 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20117667660662 is a deficient number, since it is larger than the sum of its proper divisors (15995428727434).

20117667660662 is a wasteful number, since it uses less digits than its factorization.

20117667660662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6043845.

The product of its (nonzero) digits is 9144576, while the sum is 56.

The spelling of 20117667660662 in words is "twenty trillion, one hundred seventeen billion, six hundred sixty-seven million, six hundred sixty thousand, six hundred sixty-two".