201544445102 has 64 divisors (see below), whose sum is σ = 406035431424. Its totient is φ = 72460707840.

The previous prime is 201544445099. The next prime is 201544445111.

201544445102 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7159118 + ... + 7187214.

It is an arithmetic number, because the mean of its divisors is an integer number (6344303616).

Almost surely, 2^201544445102 is an apocalyptic number.

201544445102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

201544445102 is an abundant number, since it is smaller than the sum of its proper divisors (204490986322).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201544445102 is a wasteful number, since it uses less digits than its factorization.

201544445102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31713.

The product of its (nonzero) digits is 25600, while the sum is 32.

It can be divided in two parts, 201544 and 445102, that added together give a palindrome (646646).

The spelling of 201544445102 in words is "two hundred one billion, five hundred forty-four million, four hundred forty-five thousand, one hundred two".