20701051166 has 32 divisors (see below), whose sum is σ = 31886110080. Its totient is φ = 10076276896.

The previous prime is 20701051103. The next prime is 20701051177. The reversal of 20701051166 is 66115010702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5274881 + ... + 5278803.

It is an arithmetic number, because the mean of its divisors is an integer number (996440940).

Almost surely, 2^20701051166 is an apocalyptic number.

20701051166 is a deficient number, since it is larger than the sum of its proper divisors (11185058914).

20701051166 is a wasteful number, since it uses less digits than its factorization.

20701051166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4408.

The product of its (nonzero) digits is 2520, while the sum is 29.

Adding to 20701051166 its reverse (66115010702), we get a palindrome (86816061868).

The spelling of 20701051166 in words is "twenty billion, seven hundred one million, fifty-one thousand, one hundred sixty-six".