206044140631 has 16 divisors (see below), whose sum is σ = 246300968448. Its totient is φ = 168529284000.

The previous prime is 206044140619. The next prime is 206044140649. The reversal of 206044140631 is 136041440602.

It is not a de Polignac number, because 206044140631 - 2⁹ = 206044140119 is a prime.

It is a super-2 number, since 2×206044140631² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 206044140593 and 206044140602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206044141631) 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, 1452145 + ... + 1587706.

It is an arithmetic number, because the mean of its divisors is an integer number (15393810528).

Almost surely, 2^206044140631 is an apocalyptic number.

206044140631 is a deficient number, since it is larger than the sum of its proper divisors (40256827817).

206044140631 is a wasteful number, since it uses less digits than its factorization.

206044140631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3040302.

The product of its (nonzero) digits is 13824, while the sum is 31.

The spelling of 206044140631 in words is "two hundred six billion, forty-four million, one hundred forty thousand, six hundred thirty-one".