40144796158 has 4 divisors (see below), whose sum is σ = 60217194240. Its totient is φ = 20072398078.

The previous prime is 40144796147. The next prime is 40144796161. The reversal of 40144796158 is 85169744104.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×40144796158² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 10036199038 + ... + 10036199041.

It is an arithmetic number, because the mean of its divisors is an integer number (15054298560).

Almost surely, 2^40144796158 is an apocalyptic number.

40144796158 is a deficient number, since it is larger than the sum of its proper divisors (20072398082).

40144796158 is a wasteful number, since it uses less digits than its factorization.

40144796158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20072398081.

The product of its (nonzero) digits is 967680, while the sum is 49.

The spelling of 40144796158 in words is "forty billion, one hundred forty-four million, seven hundred ninety-six thousand, one hundred fifty-eight".