40405505541 has 8 divisors (see below), whose sum is σ = 53875872864. Its totient is φ = 26936070960.

The previous prime is 40405505519. The next prime is 40405505551. The reversal of 40405505541 is 14550550404.

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

It is not a de Polignac number, because 40405505541 - 2⁹ = 40405505029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40405505501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124926 + ... + 310511.

It is an arithmetic number, because the mean of its divisors is an integer number (6734484108).

Almost surely, 2^40405505541 is an apocalyptic number.

It is an amenable number.

40405505541 is a deficient number, since it is larger than the sum of its proper divisors (13470367323).

40405505541 is a wasteful number, since it uses less digits than its factorization.

40405505541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466371.

The product of its (nonzero) digits is 40000, while the sum is 33.

The spelling of 40405505541 in words is "forty billion, four hundred five million, five hundred five thousand, five hundred forty-one".