40160641042 has 4 divisors (see below), whose sum is σ = 60240961566. Its totient is φ = 20080320520.

The previous prime is 40160641007. The next prime is 40160641043. The reversal of 40160641042 is 24014606104.

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

It can be written as a sum of positive squares in only one way, i.e., 26153681841 + 14006959201 = 161721^2 + 118351^2 .

It is a super-2 number, since 2×40160641042² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40160641042.

It is not an unprimeable number, because it can be changed into a prime (40160641043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10040160259 + ... + 10040160262.

Almost surely, 2^40160641042 is an apocalyptic number.

40160641042 is a deficient number, since it is larger than the sum of its proper divisors (20080320524).

40160641042 is a wasteful number, since it uses less digits than its factorization.

40160641042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20080320523.

The product of its (nonzero) digits is 4608, while the sum is 28.

The spelling of 40160641042 in words is "forty billion, one hundred sixty million, six hundred forty-one thousand, forty-two".