142564321564 has 24 divisors (see below), whose sum is σ = 292834824800. Its totient is φ = 59447670336.

The previous prime is 142564321541. The next prime is 142564321589. The reversal of 142564321564 is 465123465241.

142564321564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 142564321564.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68804139 + ... + 68806210.

Almost surely, 2^142564321564 is an apocalyptic number.

142564321564 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

142564321564 is an abundant number, since it is smaller than the sum of its proper divisors (150270503236).

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

142564321564 is a wasteful number, since it uses less digits than its factorization.

142564321564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137610397 (or 137610395 counting only the distinct ones).

The product of its digits is 691200, while the sum is 43.

The spelling of 142564321564 in words is "one hundred forty-two billion, five hundred sixty-four million, three hundred twenty-one thousand, five hundred sixty-four".