20160666207 has 32 divisors (see below), whose sum is σ = 32602632960. Its totient is φ = 12211184160.

The previous prime is 20160666203. The next prime is 20160666217. The reversal of 20160666207 is 70266606102.

It is not a de Polignac number, because 20160666207 - 2² = 20160666203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20160666203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 492033 + ... + 531429.

It is an arithmetic number, because the mean of its divisors is an integer number (1018832280).

Almost surely, 2^20160666207 is an apocalyptic number.

20160666207 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

20160666207 is a deficient number, since it is larger than the sum of its proper divisors (12441966753).

20160666207 is a wasteful number, since it uses less digits than its factorization.

20160666207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41140 (or 41134 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The spelling of 20160666207 in words is "twenty billion, one hundred sixty million, six hundred sixty-six thousand, two hundred seven".