142244540664 has 32 divisors (see below), whose sum is σ = 356825059920. Its totient is φ = 47253019136.

The previous prime is 142244540663. The next prime is 142244540693. The reversal of 142244540664 is 466045442241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142244540663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10107057 + ... + 10121120.

Almost surely, 2^142244540664 is an apocalyptic number.

It is an amenable number.

142244540664 is an abundant number, since it is smaller than the sum of its proper divisors (214580519256).

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

142244540664 is a wasteful number, since it uses less digits than its factorization.

142244540664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20228479 (or 20228475 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 42.

The spelling of 142244540664 in words is "one hundred forty-two billion, two hundred forty-four million, five hundred forty thousand, six hundred sixty-four".