40131550223424 has 168 divisors, whose sum is σ = 125595959335392. Its totient is φ = 12150526279680.

The previous prime is 40131550223411. The next prime is 40131550223447. The reversal of 40131550223424 is 42432205513104.

It is a happy number.

40131550223424 is a `hidden beast` number, since 4 + 0 + 1 + 3 + 1 + 5 + 5 + 0 + 223 + 424 = 666.

It is a super-2 number, since 2×40131550223424² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4558707 + ... + 10052109.

It is an arithmetic number, because the mean of its divisors is an integer number (747594996044).

Almost surely, 2^{40131550223424} is an apocalyptic number.

40131550223424 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40131550223424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62797979667696).

40131550223424 is an abundant number, since it is smaller than the sum of its proper divisors (85464409111968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40131550223424 is a wasteful number, since it uses less digits than its factorization.

40131550223424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5494585 (or 5494572 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 40131550223424 its reverse (42432205513104), we get a palindrome (82563755736528).

The spelling of 40131550223424 in words is "forty trillion, one hundred thirty-one billion, five hundred fifty million, two hundred twenty-three thousand, four hundred twenty-four".