40366213321500 has 288 divisors, whose sum is σ = 139770776920320. Its totient is φ = 9725711472000.

The previous prime is 40366213321457. The next prime is 40366213321501. The reversal of 40366213321500 is 512331266304.

40366213321500 is a `hidden beast` number, since 4 + 0 + 3 + 6 + 621 + 3 + 3 + 21 + 5 + 0 + 0 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40366213321501) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5567031 + ... + 10569969.

It is an arithmetic number, because the mean of its divisors is an integer number (485315197640).

Almost surely, 2^{40366213321500} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40366213321500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69885388460160).

40366213321500 is an abundant number, since it is smaller than the sum of its proper divisors (99404563598820).

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

40366213321500 is a wasteful number, since it uses less digits than its factorization.

40366213321500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5003138 (or 5003123 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

Adding to 40366213321500 its reverse (512331266304), we get a palindrome (40878544587804).

The spelling of 40366213321500 in words is "forty trillion, three hundred sixty-six billion, two hundred thirteen million, three hundred twenty-one thousand, five hundred".