20147252706503 has 16 divisors (see below), whose sum is σ = 22283774199456. Its totient is φ = 18094564909440.

The previous prime is 20147252706487. The next prime is 20147252706509. The reversal of 20147252706503 is 30560725274102.

It is a cyclic number.

It is not a de Polignac number, because 20147252706503 - 2⁴ = 20147252706487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20147252706509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37386593 + ... + 37921653.

It is an arithmetic number, because the mean of its divisors is an integer number (1392735887466).

Almost surely, 2^{20147252706503} is an apocalyptic number.

20147252706503 is a deficient number, since it is larger than the sum of its proper divisors (2136521492953).

20147252706503 is a wasteful number, since it uses less digits than its factorization.

20147252706503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613394.

The product of its (nonzero) digits is 705600, while the sum is 44.

The spelling of 20147252706503 in words is "twenty trillion, one hundred forty-seven billion, two hundred fifty-two million, seven hundred six thousand, five hundred three".