201142534544 has 20 divisors (see below), whose sum is σ = 445387041024. Its totient is φ = 86203943328.

The previous prime is 201142534493. The next prime is 201142534561. The reversal of 201142534544 is 445435241102.

It is a happy number.

201142534544 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 897957632 + ... + 897957855.

Almost surely, 2^201142534544 is an apocalyptic number.

It is an amenable number.

201142534544 is an abundant number, since it is smaller than the sum of its proper divisors (244244506480).

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

201142534544 is a wasteful number, since it uses less digits than its factorization.

201142534544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1795915502 (or 1795915496 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 201142534544 its reverse (445435241102), we get a palindrome (646577775646).

The spelling of 201142534544 in words is "two hundred one billion, one hundred forty-two million, five hundred thirty-four thousand, five hundred forty-four".