40511221421541 has 32 divisors (see below), whose sum is σ = 58736054509440. Its totient is φ = 24687622713600.

The previous prime is 40511221421527. The next prime is 40511221421551. The reversal of 40511221421541 is 14512412211504.

It is not a de Polignac number, because 40511221421541 - 2¹⁴ = 40511221405157 is a prime.

It is a super-3 number, since 3×40511221421541³ (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40511221421521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5067471 + ... + 10329651.

It is an arithmetic number, because the mean of its divisors is an integer number (1835501703420).

Almost surely, 2^{40511221421541} is an apocalyptic number.

It is an amenable number.

40511221421541 is a deficient number, since it is larger than the sum of its proper divisors (18224833087899).

40511221421541 is a wasteful number, since it uses less digits than its factorization.

40511221421541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5264117.

The product of its (nonzero) digits is 12800, while the sum is 33.

The spelling of 40511221421541 in words is "forty trillion, five hundred eleven billion, two hundred twenty-one million, four hundred twenty-one thousand, five hundred forty-one".