20346305661610 has 16 divisors (see below), whose sum is σ = 36623403473832. Its totient is φ = 8138510424000.

The previous prime is 20346305661599. The next prime is 20346305661611. The reversal of 20346305661610 is 1616650364302.

It can be written as a sum of positive squares in 4 ways, for example, as 20323245113161 + 23060548449 = 4508131^2 + 151857^2 .

It is not an unprimeable number, because it can be changed into a prime (20346305661611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9913480 + ... + 11788540.

Almost surely, 2^{20346305661610} is an apocalyptic number.

20346305661610 is a deficient number, since it is larger than the sum of its proper divisors (16277097812222).

20346305661610 is a wasteful number, since it uses less digits than its factorization.

20346305661610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2960169.

The product of its (nonzero) digits is 466560, while the sum is 43.

The spelling of 20346305661610 in words is "twenty trillion, three hundred forty-six billion, three hundred five million, six hundred sixty-one thousand, six hundred ten".