206162571651 has 32 divisors (see below), whose sum is σ = 277525248000. Its totient is φ = 136129206528.

The previous prime is 206162571613. The next prime is 206162571653. The reversal of 206162571651 is 156175261602.

It is not a de Polignac number, because 206162571651 - 2¹¹ = 206162569603 is a prime.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (206162571653) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 144269805 + ... + 144271233.

It is an arithmetic number, because the mean of its divisors is an integer number (8672664000).

Almost surely, 2^206162571651 is an apocalyptic number.

206162571651 is a deficient number, since it is larger than the sum of its proper divisors (71362676349).

206162571651 is a wasteful number, since it uses less digits than its factorization.

206162571651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2603.

The product of its (nonzero) digits is 151200, while the sum is 42.

The spelling of 206162571651 in words is "two hundred six billion, one hundred sixty-two million, five hundred seventy-one thousand, six hundred fifty-one".