40124205425505 has 64 divisors (see below), whose sum is σ = 66223246049280. Its totient is φ = 20734717638144.

The previous prime is 40124205425503. The next prime is 40124205425509. The reversal of 40124205425505 is 50552450242104.

It is not a de Polignac number, because 40124205425505 - 2¹ = 40124205425503 is a prime.

It is a super-2 number, since 2×40124205425505² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40124205425503) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 34880716 + ... + 36012674.

It is an arithmetic number, because the mean of its divisors is an integer number (1034738219520).

Almost surely, 2^{40124205425505} is an apocalyptic number.

It is an amenable number.

40124205425505 is a deficient number, since it is larger than the sum of its proper divisors (26099040623775).

40124205425505 is a wasteful number, since it uses less digits than its factorization.

40124205425505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132518.

The product of its (nonzero) digits is 320000, while the sum is 39.

Adding to 40124205425505 its reverse (50552450242104), we get a palindrome (90676655667609).

The spelling of 40124205425505 in words is "forty trillion, one hundred twenty-four billion, two hundred five million, four hundred twenty-five thousand, five hundred five".