40431066125 has 8 divisors (see below), whose sum is σ = 50457970680. Its totient is φ = 32344852800.

The previous prime is 40431066107. The next prime is 40431066167. The reversal of 40431066125 is 52166013404.

It can be written as a sum of positive squares in 4 ways, for example, as 2210034121 + 38221032004 = 47011^2 + 195502^2 .

It is not a de Polignac number, because 40431066125 - 2⁶ = 40431066061 is a prime.

It is a super-2 number, since 2×40431066125² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40431066091 and 40431066100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161724140 + ... + 161724389.

It is an arithmetic number, because the mean of its divisors is an integer number (6307246335).

Almost surely, 2^40431066125 is an apocalyptic number.

It is an amenable number.

40431066125 is a deficient number, since it is larger than the sum of its proper divisors (10026904555).

40431066125 is an equidigital number, since it uses as much as digits as its factorization.

40431066125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323448544 (or 323448534 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 40431066125 its reverse (52166013404), we get a palindrome (92597079529).

The spelling of 40431066125 in words is "forty billion, four hundred thirty-one million, sixty-six thousand, one hundred twenty-five".