142631556564 has 96 divisors (see below), whose sum is σ = 383609640960. Its totient is φ = 40403855232.

The previous prime is 142631556563. The next prime is 142631556577. The reversal of 142631556564 is 465655136241.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142631556563) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6147217 + ... + 6170375.

It is an arithmetic number, because the mean of its divisors is an integer number (3995933760).

Almost surely, 2^142631556564 is an apocalyptic number.

142631556564 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142631556564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191804820480).

142631556564 is an abundant number, since it is smaller than the sum of its proper divisors (240978084396).

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

142631556564 is a wasteful number, since it uses less digits than its factorization.

142631556564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23797 (or 23795 counting only the distinct ones).

The product of its digits is 2592000, while the sum is 48.

The spelling of 142631556564 in words is "one hundred forty-two billion, six hundred thirty-one million, five hundred fifty-six thousand, five hundred sixty-four".