206964281355 has 32 divisors (see below), whose sum is σ = 357832593216. Its totient is φ = 101542331904.

The previous prime is 206964281327. The next prime is 206964281387. The reversal of 206964281355 is 553182469602.

It is a happy number.

It is not a de Polignac number, because 206964281355 - 2⁵ = 206964281323 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 206964281298 and 206964281307.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1754052 + ... + 1868321.

It is an arithmetic number, because the mean of its divisors is an integer number (11182268538).

Almost surely, 2^206964281355 is an apocalyptic number.

206964281355 is a deficient number, since it is larger than the sum of its proper divisors (150868311861).

206964281355 is a wasteful number, since it uses less digits than its factorization.

206964281355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3622687.

The product of its (nonzero) digits is 3110400, while the sum is 51.

The spelling of 206964281355 in words is "two hundred six billion, nine hundred sixty-four million, two hundred eighty-one thousand, three hundred fifty-five".