206106455 has 16 divisors (see below), whose sum is σ = 249570720. Its totient is φ = 163398528.

The previous prime is 206106449. The next prime is 206106493. The reversal of 206106455 is 554601602.

It is a cyclic number.

It is not a de Polignac number, because 206106455 - 2¹² = 206102359 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 393824 + ... + 394346.

It is an arithmetic number, because the mean of its divisors is an integer number (15598170).

Almost surely, 2^206106455 is an apocalyptic number.

206106455 is a deficient number, since it is larger than the sum of its proper divisors (43464265).

206106455 is a wasteful number, since it uses less digits than its factorization.

206106455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1090.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 206106455 is about 14356.4081510662. The cubic root of 206106455 is about 590.6957749700.

The spelling of 206106455 in words is "two hundred six million, one hundred six thousand, four hundred fifty-five".