20716170707 has 8 divisors (see below), whose sum is σ = 20951960400. Its totient is φ = 20480448384.

The previous prime is 20716170697. The next prime is 20716170751. The reversal of 20716170707 is 70707161702.

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 20716170707 - 2¹⁶ = 20716105171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20716170407) 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, 857528 + ... + 881354.

It is an arithmetic number, because the mean of its divisors is an integer number (2618995050).

Almost surely, 2^20716170707 is an apocalyptic number.

20716170707 is a deficient number, since it is larger than the sum of its proper divisors (235789693).

20716170707 is an equidigital number, since it uses as much as digits as its factorization.

20716170707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33685.

The product of its (nonzero) digits is 28812, while the sum is 38.

The spelling of 20716170707 in words is "twenty billion, seven hundred sixteen million, one hundred seventy thousand, seven hundred seven".