20477417117 has 8 divisors (see below), whose sum is σ = 20533209600. Its totient is φ = 20421702000.

The previous prime is 20477417087. The next prime is 20477417123. The reversal of 20477417117 is 71171477402.

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 20477417117 - 2⁶ = 20477417053 is a prime.

It is a super-2 number, since 2×20477417117² (a number of 21 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 (20477417137) 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, 531884 + ... + 569082.

It is an arithmetic number, because the mean of its divisors is an integer number (2566651200).

Almost surely, 2^20477417117 is an apocalyptic number.

It is an amenable number.

20477417117 is a deficient number, since it is larger than the sum of its proper divisors (55792483).

20477417117 is an equidigital number, since it uses as much as digits as its factorization.

20477417117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38683.

The product of its (nonzero) digits is 76832, while the sum is 41.

The spelling of 20477417117 in words is "twenty billion, four hundred seventy-seven million, four hundred seventeen thousand, one hundred seventeen".