20444532263015 has 32 divisors (see below), whose sum is σ = 28850082823296. Its totient is φ = 13618412121600.

The previous prime is 20444532263009. The next prime is 20444532263041. The reversal of 20444532263015 is 51036223544402.

It is not a de Polignac number, because 20444532263015 - 2¹⁴ = 20444532246631 is a prime.

It is a super-2 number, since 2×20444532263015² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 54373592 + ... + 54748301.

It is an arithmetic number, because the mean of its divisors is an integer number (901565088228).

Almost surely, 2^{20444532263015} is an apocalyptic number.

20444532263015 is a deficient number, since it is larger than the sum of its proper divisors (8405550560281).

20444532263015 is a wasteful number, since it uses less digits than its factorization.

20444532263015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109122059.

The product of its (nonzero) digits is 691200, while the sum is 41.

The spelling of 20444532263015 in words is "twenty trillion, four hundred forty-four billion, five hundred thirty-two million, two hundred sixty-three thousand, fifteen".