20444544561454 has 32 divisors (see below), whose sum is σ = 33095422382400. Its totient is φ = 9416066130432.

The previous prime is 20444544561449. The next prime is 20444544561517. The reversal of 20444544561454 is 45416544544402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35424934 + ... + 35997430.

It is an arithmetic number, because the mean of its divisors is an integer number (1034231949450).

Almost surely, 2^{20444544561454} is an apocalyptic number.

20444544561454 is a deficient number, since it is larger than the sum of its proper divisors (12650877820946).

20444544561454 is a wasteful number, since it uses less digits than its factorization.

20444544561454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575404.

The product of its (nonzero) digits is 24576000, while the sum is 52.

The spelling of 20444544561454 in words is "twenty trillion, four hundred forty-four billion, five hundred forty-four million, five hundred sixty-one thousand, four hundred fifty-four".