20754302217445 has 32 divisors (see below), whose sum is σ = 27125611401600. Its totient is φ = 15184012080384.

The previous prime is 20754302217431. The next prime is 20754302217449. The reversal of 20754302217445 is 54471220345702.

It is a cyclic number.

It is not a de Polignac number, because 20754302217445 - 2¹⁷ = 20754302086373 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20754302217395 and 20754302217404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20754302217449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12477214 + ... + 14042416.

It is an arithmetic number, because the mean of its divisors is an integer number (847675356300).

Almost surely, 2^{20754302217445} is an apocalyptic number.

It is an amenable number.

20754302217445 is a deficient number, since it is larger than the sum of its proper divisors (6371309184155).

20754302217445 is a wasteful number, since it uses less digits than its factorization.

20754302217445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570069.

The product of its (nonzero) digits is 1881600, while the sum is 46.

The spelling of 20754302217445 in words is "twenty trillion, seven hundred fifty-four billion, three hundred two million, two hundred seventeen thousand, four hundred forty-five".