142663815515728 has 80 divisors (see below), whose sum is σ = 316305398815056. Its totient is φ = 61751072194560.

The previous prime is 142663815515707. The next prime is 142663815515783. The reversal of 142663815515728 is 827515518366241.

It can be written as a sum of positive squares in 8 ways, for example, as 15744484356624 + 126919331159104 = 3967932^2 + 11265848^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 142663815515728.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70796601 + ... + 72783832.

Almost surely, 2^{142663815515728} is an apocalyptic number.

It is an amenable number.

142663815515728 is an abundant number, since it is smaller than the sum of its proper divisors (173641583299328).

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

142663815515728 is a wasteful number, since it uses less digits than its factorization.

142663815515728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143580752 (or 143580746 counting only the distinct ones).

The product of its digits is 96768000, while the sum is 64.

The spelling of 142663815515728 in words is "one hundred forty-two trillion, six hundred sixty-three billion, eight hundred fifteen million, five hundred fifteen thousand, seven hundred twenty-eight".