206018045652 has 12 divisors (see below), whose sum is σ = 480708773216. Its totient is φ = 68672681880.

The previous prime is 206018045599. The next prime is 206018045683. The reversal of 206018045652 is 256540810602.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×206018045652² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 206018045652.

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, 8584085224 + ... + 8584085247.

Almost surely, 2^206018045652 is an apocalyptic number.

It is an amenable number.

206018045652 is an abundant number, since it is smaller than the sum of its proper divisors (274690727564).

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

206018045652 is a wasteful number, since it uses less digits than its factorization.

206018045652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17168170478 (or 17168170476 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 39.

The spelling of 206018045652 in words is "two hundred six billion, eighteen million, forty-five thousand, six hundred fifty-two".