72143406560144 has 10 divisors (see below), whose sum is σ = 139777850210310. Its totient is φ = 36071703280064.

The previous prime is 72143406560129. The next prime is 72143406560153. The reversal of 72143406560144 is 44106560434127.

It can be written as a sum of positive squares in only one way, i.e., 55351933452544 + 16791473107600 = 7439888^2 + 4097740^2 .

It is a super-2 number, since 2×72143406560144² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2254481454989 + ... + 2254481455020.

It is an arithmetic number, because the mean of its divisors is an integer number (13977785021031).

Almost surely, 2^{72143406560144} is an apocalyptic number.

It is an amenable number.

72143406560144 is a deficient number, since it is larger than the sum of its proper divisors (67634443650166).

72143406560144 is a wasteful number, since it uses less digits than its factorization.

72143406560144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4508962910017 (or 4508962910011 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 47.

The spelling of 72143406560144 in words is "seventy-two trillion, one hundred forty-three billion, four hundred six million, five hundred sixty thousand, one hundred forty-four".