40121313566 has 8 divisors (see below), whose sum is σ = 60302577000. Its totient is φ = 20020454568.

The previous prime is 40121313553. The next prime is 40121313569. The reversal of 40121313566 is 66531312104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×40121313566² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40121313569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20099861 + ... + 20101856.

It is an arithmetic number, because the mean of its divisors is an integer number (7537822125).

Almost surely, 2^40121313566 is an apocalyptic number.

40121313566 is a deficient number, since it is larger than the sum of its proper divisors (20181263434).

40121313566 is a wasteful number, since it uses less digits than its factorization.

40121313566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40202218.

The product of its (nonzero) digits is 12960, while the sum is 32.

The spelling of 40121313566 in words is "forty billion, one hundred twenty-one million, three hundred thirteen thousand, five hundred sixty-six".