206123806165144 has 32 divisors (see below), whose sum is σ = 441933011815680. Its totient is φ = 88290945778464.

The previous prime is 206123806165129. The next prime is 206123806165169. The reversal of 206123806165144 is 441561608321602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 996318402 + ... + 996525265.

It is an arithmetic number, because the mean of its divisors is an integer number (13810406619240).

Almost surely, 2^{206123806165144} is an apocalyptic number.

It is an amenable number.

206123806165144 is an abundant number, since it is smaller than the sum of its proper divisors (235809205650536).

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

206123806165144 is a wasteful number, since it uses less digits than its factorization.

206123806165144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1992845527 (or 1992845523 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 49.

The spelling of 206123806165144 in words is "two hundred six trillion, one hundred twenty-three billion, eight hundred six million, one hundred sixty-five thousand, one hundred forty-four".