206250655305051 has 48 divisors (see below), whose sum is σ = 341763984289728. Its totient is φ = 117412301260800.

The previous prime is 206250655305049. The next prime is 206250655305059. The reversal of 206250655305051 is 150503556052602.

206250655305051 is a `hidden beast` number, since 2 + 0 + 6 + 2 + 5 + 0 + 65 + 530 + 5 + 0 + 51 = 666.

It is not a de Polignac number, because 206250655305051 - 2¹ = 206250655305049 is a prime.

It is a super-2 number, since 2×206250655305051² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 206250655304988 and 206250655305006.

It is not an unprimeable number, because it can be changed into a prime (206250655305059) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 79466185 + ... + 82020581.

It is an arithmetic number, because the mean of its divisors is an integer number (7120083006036).

Almost surely, 2^{206250655305051} is an apocalyptic number.

206250655305051 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

206250655305051 is a deficient number, since it is larger than the sum of its proper divisors (135513328984677).

206250655305051 is a wasteful number, since it uses less digits than its factorization.

206250655305051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2559252 (or 2559249 counting only the distinct ones).

The product of its (nonzero) digits is 1350000, while the sum is 45.

The spelling of 206250655305051 in words is "two hundred six trillion, two hundred fifty billion, six hundred fifty-five million, three hundred five thousand, fifty-one".