40012105455 has 96 divisors (see below), whose sum is σ = 80754081408. Its totient is φ = 17948390400.

The previous prime is 40012105439. The next prime is 40012105459. The reversal of 40012105455 is 55450121004.

40012105455 is a `hidden beast` number, since 400 + 1 + 210 + 5 + 45 + 5 = 666.

40012105455 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 40012105455 - 2⁴ = 40012105439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40012105459) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8855857 + ... + 8860373.

It is an arithmetic number, because the mean of its divisors is an integer number (841188348).

Almost surely, 2^40012105455 is an apocalyptic number.

40012105455 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

40012105455 is an abundant number, since it is smaller than the sum of its proper divisors (40741975953).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40012105455 is a wasteful number, since it uses less digits than its factorization.

40012105455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5057 (or 5054 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

Adding to 40012105455 its reverse (55450121004), we get a palindrome (95462226459).

The spelling of 40012105455 in words is "forty billion, twelve million, one hundred five thousand, four hundred fifty-five".