20860701066 has 32 divisors (see below), whose sum is σ = 47117073600. Its totient is φ = 6839573040.

The previous prime is 20860701019. The next prime is 20860701073. The reversal of 20860701066 is 66010706802.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20860701066.

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, 3163176 + ... + 3169763.

It is an arithmetic number, because the mean of its divisors is an integer number (1472408550).

Almost surely, 2^20860701066 is an apocalyptic number.

20860701066 is an abundant number, since it is smaller than the sum of its proper divisors (26256372534).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20860701066 is a wasteful number, since it uses less digits than its factorization.

20860701066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6333011 (or 6333005 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 20860701066 in words is "twenty billion, eight hundred sixty million, seven hundred one thousand, sixty-six".