206526416323645 has 16 divisors (see below), whose sum is σ = 284591425366080. Its totient is φ = 142295712681600.

The previous prime is 206526416323639. The next prime is 206526416323649. The reversal of 206526416323645 is 546323614625602.

It is not a de Polignac number, because 206526416323645 - 2⁵ = 206526416323613 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206526416323649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98816466096 + ... + 98816468185.

It is an arithmetic number, because the mean of its divisors is an integer number (17786964085380).

Almost surely, 2^{206526416323645} is an apocalyptic number.

It is an amenable number.

206526416323645 is a deficient number, since it is larger than the sum of its proper divisors (78065009042435).

206526416323645 is a wasteful number, since it uses less digits than its factorization.

206526416323645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197632934316.

The product of its (nonzero) digits is 37324800, while the sum is 55.

The spelling of 206526416323645 in words is "two hundred six trillion, five hundred twenty-six billion, four hundred sixteen million, three hundred twenty-three thousand, six hundred forty-five".