20040366265 has 16 divisors (see below), whose sum is σ = 24218082000. Its totient is φ = 15919338240.

The previous prime is 20040366263. The next prime is 20040366287. The reversal of 20040366265 is 56266304002.

It can be written as a sum of positive squares in 8 ways, for example, as 2424971536 + 17615394729 = 49244^2 + 132723^2 .

It is not a de Polignac number, because 20040366265 - 2¹ = 20040366263 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20040366265.

It is not an unprimeable number, because it can be changed into a prime (20040366263) 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, 1264611 + ... + 1280359.

It is an arithmetic number, because the mean of its divisors is an integer number (1513630125).

Almost surely, 2^20040366265 is an apocalyptic number.

It is an amenable number.

20040366265 is a deficient number, since it is larger than the sum of its proper divisors (4177715735).

20040366265 is a wasteful number, since it uses less digits than its factorization.

20040366265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17532.

The product of its (nonzero) digits is 51840, while the sum is 34.

The spelling of 20040366265 in words is "twenty billion, forty million, three hundred sixty-six thousand, two hundred sixty-five".