206053154455405 has 32 divisors (see below), whose sum is σ = 251930925388800. Its totient is φ = 161761901824512.

The previous prime is 206053154455297. The next prime is 206053154455439. The reversal of 206053154455405 is 504554451350602.

It is a cyclic number.

It is not a de Polignac number, because 206053154455405 - 2¹⁵ = 206053154422637 is a prime.

It is a super-2 number, since 2×206053154455405² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

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, 49423972 + ... + 53430658.

It is an arithmetic number, because the mean of its divisors is an integer number (7872841418400).

Almost surely, 2^{206053154455405} is an apocalyptic number.

It is an amenable number.

206053154455405 is a deficient number, since it is larger than the sum of its proper divisors (45877770933395).

206053154455405 is a wasteful number, since it uses less digits than its factorization.

206053154455405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4007653.

The product of its (nonzero) digits is 7200000, while the sum is 49.

The spelling of 206053154455405 in words is "two hundred six trillion, fifty-three billion, one hundred fifty-four million, four hundred fifty-five thousand, four hundred five".