206164352220536 has 16 divisors (see below), whose sum is σ = 399027778491840. Its totient is φ = 99756944622720.

The previous prime is 206164352220487. The next prime is 206164352220553. The reversal of 206164352220536 is 635022253461602.

It is a super-2 number, since 2×206164352220536² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 415653935681 + ... + 415653936176.

It is an arithmetic number, because the mean of its divisors is an integer number (24939236155740).

Almost surely, 2^{206164352220536} is an apocalyptic number.

It is an amenable number.

206164352220536 is a deficient number, since it is larger than the sum of its proper divisors (192863426271304).

206164352220536 is a wasteful number, since it uses less digits than its factorization.

206164352220536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831307871894 (or 831307871890 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 47.

The spelling of 206164352220536 in words is "two hundred six trillion, one hundred sixty-four billion, three hundred fifty-two million, two hundred twenty thousand, five hundred thirty-six".