20544485151 has 16 divisors (see below), whose sum is σ = 27449251200. Its totient is φ = 13668050400.

The previous prime is 20544485149. The next prime is 20544485191. The reversal of 20544485151 is 15158444502.

It is a happy number.

It is not a de Polignac number, because 20544485151 - 2¹ = 20544485149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20544485131) 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, 4613476 + ... + 4617926.

It is an arithmetic number, because the mean of its divisors is an integer number (1715578200).

Almost surely, 2^20544485151 is an apocalyptic number.

20544485151 is a deficient number, since it is larger than the sum of its proper divisors (6904766049).

20544485151 is a wasteful number, since it uses less digits than its factorization.

20544485151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7286.

The product of its (nonzero) digits is 128000, while the sum is 39.

The spelling of 20544485151 in words is "twenty billion, five hundred forty-four million, four hundred eighty-five thousand, one hundred fifty-one".