40145215521311 has 8 divisors (see below), whose sum is σ = 42363503458800. Its totient is φ = 37937465769600.

The previous prime is 40145215521289. The next prime is 40145215521319. The reversal of 40145215521311 is 11312551254104.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 40145215521311 - 2¹⁰ = 40145215520287 is a prime.

It is a super-2 number, since 2×40145215521311² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40145215521319) 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 7 ways as a sum of consecutive naturals, for example, 2634538616 + ... + 2634553853.

It is an arithmetic number, because the mean of its divisors is an integer number (5295437932350).

Almost surely, 2^{40145215521311} is an apocalyptic number.

40145215521311 is a deficient number, since it is larger than the sum of its proper divisors (2218287937489).

40145215521311 is a wasteful number, since it uses less digits than its factorization.

40145215521311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5269092889.

The product of its (nonzero) digits is 24000, while the sum is 35.

Adding to 40145215521311 its reverse (11312551254104), we get a palindrome (51457766775415).

The spelling of 40145215521311 in words is "forty trillion, one hundred forty-five billion, two hundred fifteen million, five hundred twenty-one thousand, three hundred eleven".