206156064140452 has 24 divisors (see below), whose sum is σ = 361954970891360. Its totient is φ = 102740370606720.

The previous prime is 206156064140401. The next prime is 206156064140501. The reversal of 206156064140452 is 254041460651602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65987452 + ... + 69040972.

Almost surely, 2^{206156064140452} is an apocalyptic number.

It is an amenable number.

206156064140452 is a deficient number, since it is larger than the sum of its proper divisors (155798906750908).

206156064140452 is a wasteful number, since it uses less digits than its factorization.

206156064140452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3108811 (or 3108809 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 46.

The spelling of 206156064140452 in words is "two hundred six trillion, one hundred fifty-six billion, sixty-four million, one hundred forty thousand, four hundred fifty-two".