40166021124 has 72 divisors (see below), whose sum is σ = 106376900448. Its totient is φ = 13250615040.

The previous prime is 40166021123. The next prime is 40166021149. The reversal of 40166021124 is 42112066104.

40166021124 is a `hidden beast` number, since 40 + 1 + 6 + 602 + 1 + 12 + 4 = 666.

It is a super-2 number, since 2×40166021124² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (40166021123) 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 in 23 ways as a sum of consecutive naturals, for example, 118722 + ... + 307289.

Almost surely, 2^40166021124 is an apocalyptic number.

It is an amenable number.

40166021124 is an abundant number, since it is smaller than the sum of its proper divisors (66210879324).

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

40166021124 is a wasteful number, since it uses less digits than its factorization.

40166021124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426127 (or 426113 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 40166021124 its reverse (42112066104), we get a palindrome (82278087228).

The spelling of 40166021124 in words is "forty billion, one hundred sixty-six million, twenty-one thousand, one hundred twenty-four".