40505551205 has 32 divisors (see below), whose sum is σ = 57492771840. Its totient is φ = 26804977920.

The previous prime is 40505551201. The next prime is 40505551249. The reversal of 40505551205 is 50215550504.

40505551205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40505551205 - 2² = 40505551201 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40505551201) 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, 2506100 + ... + 2522210.

It is an arithmetic number, because the mean of its divisors is an integer number (1796649120).

Almost surely, 2^40505551205 is an apocalyptic number.

It is an amenable number.

40505551205 is a deficient number, since it is larger than the sum of its proper divisors (16987220635).

40505551205 is a wasteful number, since it uses less digits than its factorization.

40505551205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18629.

The product of its (nonzero) digits is 25000, while the sum is 32.

The spelling of 40505551205 in words is "forty billion, five hundred five million, five hundred fifty-one thousand, two hundred five".