206064451123 has 16 divisors (see below), whose sum is σ = 210421048320. Its totient is φ = 201750623200.

The previous prime is 206064451063. The next prime is 206064451139. The reversal of 206064451123 is 321154460602.

It is a cyclic number.

It is not a de Polignac number, because 206064451123 - 2¹³ = 206064442931 is a prime.

It is a super-2 number, since 2×206064451123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206064451183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13141578 + ... + 13157248.

It is an arithmetic number, because the mean of its divisors is an integer number (13151315520).

Almost surely, 2^206064451123 is an apocalyptic number.

206064451123 is a deficient number, since it is larger than the sum of its proper divisors (4356597197).

206064451123 is a wasteful number, since it uses less digits than its factorization.

206064451123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17018.

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 206064451123 in words is "two hundred six billion, sixty-four million, four hundred fifty-one thousand, one hundred twenty-three".