206013256051 has 8 divisors (see below), whose sum is σ = 209913740784. Its totient is φ = 202113269280.

The previous prime is 206013256027. The next prime is 206013256081. The reversal of 206013256051 is 150652310602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 206013256051 - 2²⁵ = 205979701619 is a prime.

It is a super-2 number, since 2×206013256051² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206013256081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 771180 + ... + 1003366.

It is an arithmetic number, because the mean of its divisors is an integer number (26239217598).

Almost surely, 2^206013256051 is an apocalyptic number.

206013256051 is a deficient number, since it is larger than the sum of its proper divisors (3900484733).

206013256051 is a wasteful number, since it uses less digits than its factorization.

206013256051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248981.

The product of its (nonzero) digits is 10800, while the sum is 31.

Adding to 206013256051 its reverse (150652310602), we get a palindrome (356665566653).

The spelling of 206013256051 in words is "two hundred six billion, thirteen million, two hundred fifty-six thousand, fifty-one".