40144054144 has 16 divisors (see below), whose sum is σ = 79974483120. Its totient is φ = 20072027008.

The previous prime is 40144054127. The next prime is 40144054151. The reversal of 40144054144 is 44145044104.

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×40144054144² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156812584 + ... + 156812839.

It is an arithmetic number, because the mean of its divisors is an integer number (4998405195).

Almost surely, 2^40144054144 is an apocalyptic number.

It is an amenable number.

40144054144 is a deficient number, since it is larger than the sum of its proper divisors (39830428976).

40144054144 is an equidigital number, since it uses as much as digits as its factorization.

40144054144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313625437 (or 313625425 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 31.

Adding to 40144054144 its reverse (44145044104), we get a palindrome (84289098248).

The spelling of 40144054144 in words is "forty billion, one hundred forty-four million, fifty-four thousand, one hundred forty-four".