40166252720244 has 72 divisors (see below), whose sum is σ = 116804290581888. Its totient is φ = 11400071716800.

The previous prime is 40166252720203. The next prime is 40166252720261. The reversal of 40166252720244 is 44202725266104.

40166252720244 is a `hidden beast` number, since 4 + 0 + 1 + 6 + 62 + 527 + 20 + 2 + 44 = 666.

It is a super-2 number, since 2×40166252720244² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40166252720244.

It is a congruent number.

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, 527743047 + ... + 527819150.

Almost surely, 2^{40166252720244} is an apocalyptic number.

It is an amenable number.

40166252720244 is an abundant number, since it is smaller than the sum of its proper divisors (76638037861644).

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

40166252720244 is a wasteful number, since it uses less digits than its factorization.

40166252720244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055562365 (or 1055562360 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 45.

Adding to 40166252720244 its reverse (44202725266104), we get a palindrome (84368977986348).

The spelling of 40166252720244 in words is "forty trillion, one hundred sixty-six billion, two hundred fifty-two million, seven hundred twenty thousand, two hundred forty-four".