40164144250 has 16 divisors (see below), whose sum is σ = 75187278504. Its totient is φ = 16065657600.

The previous prime is 40164144203. The next prime is 40164144253. The reversal of 40164144250 is 5244146104.

It can be written as a sum of positive squares in 4 ways, for example, as 5229169969 + 34934974281 = 72313^2 + 186909^2 .

It is a super-2 number, since 2×40164144250² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40164144253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80328039 + ... + 80328538.

Almost surely, 2^40164144250 is an apocalyptic number.

40164144250 is a deficient number, since it is larger than the sum of its proper divisors (35023134254).

40164144250 is a wasteful number, since it uses less digits than its factorization.

40164144250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160656594 (or 160656584 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

The spelling of 40164144250 in words is "forty billion, one hundred sixty-four million, one hundred forty-four thousand, two hundred fifty".