20344526630305 has 32 divisors (see below), whose sum is σ = 25704038764800. Its totient is φ = 15435859219200.

The previous prime is 20344526630303. The next prime is 20344526630317. The reversal of 20344526630305 is 50303662544302.

It is not a de Polignac number, because 20344526630305 - 2¹ = 20344526630303 is a prime.

It is a super-2 number, since 2×20344526630305² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20344526630303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4980220 + ... + 8092690.

It is an arithmetic number, because the mean of its divisors is an integer number (803251211400).

Almost surely, 2^{20344526630305} is an apocalyptic number.

It is an amenable number.

20344526630305 is a deficient number, since it is larger than the sum of its proper divisors (5359512134495).

20344526630305 is a wasteful number, since it uses less digits than its factorization.

20344526630305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3113305.

The product of its (nonzero) digits is 1555200, while the sum is 43.

The spelling of 20344526630305 in words is "twenty trillion, three hundred forty-four billion, five hundred twenty-six million, six hundred thirty thousand, three hundred five".