40455442551 has 16 divisors (see below), whose sum is σ = 55262430720. Its totient is φ = 26309522880.

The previous prime is 40455442507. The next prime is 40455442571. The reversal of 40455442551 is 15524455404.

40455442551 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 40455442551 - 2⁹ = 40455442039 is a prime.

It is a super-3 number, since 3×40455442551³ (a number of 33 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 (40455442501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1814610 + ... + 1836768.

It is an arithmetic number, because the mean of its divisors is an integer number (3453901920).

Almost surely, 2^40455442551 is an apocalyptic number.

40455442551 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

40455442551 is a deficient number, since it is larger than the sum of its proper divisors (14806988169).

40455442551 is a wasteful number, since it uses less digits than its factorization.

40455442551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37046.

The product of its (nonzero) digits is 320000, while the sum is 39.

Adding to 40455442551 its reverse (15524455404), we get a palindrome (55979897955).

The spelling of 40455442551 in words is "forty billion, four hundred fifty-five million, four hundred forty-two thousand, five hundred fifty-one".