206502156156 has 48 divisors (see below), whose sum is σ = 497512028160. Its totient is φ = 66596122560.

The previous prime is 206502156149. The next prime is 206502156167. The reversal of 206502156156 is 651651205602.

It is a happy number.

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, 1386265 + ... + 1527983.

It is an arithmetic number, because the mean of its divisors is an integer number (10364833920).

Almost surely, 2^206502156156 is an apocalyptic number.

It is an amenable number.

206502156156 is an abundant number, since it is smaller than the sum of its proper divisors (291009872004).

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

206502156156 is a wasteful number, since it uses less digits than its factorization.

206502156156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145674 (or 145672 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 39.

The spelling of 206502156156 in words is "two hundred six billion, five hundred two million, one hundred fifty-six thousand, one hundred fifty-six".