40343405553 has 24 divisors (see below), whose sum is σ = 66335405760. Its totient is φ = 23387480160.

The previous prime is 40343405467. The next prime is 40343405561. The reversal of 40343405553 is 35550434304.

40343405553 is a `hidden beast` number, since 40 + 34 + 34 + 0 + 5 + 553 = 666.

40343405553 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 40343405553 - 2²¹ = 40341308401 is a prime.

It is a super-2 number, since 2×40343405553² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40343405563) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8856618 + ... + 8861171.

It is an arithmetic number, because the mean of its divisors is an integer number (2763975240).

Almost surely, 2^40343405553 is an apocalyptic number.

It is an amenable number.

40343405553 is a deficient number, since it is larger than the sum of its proper divisors (25992000207).

40343405553 is a wasteful number, since it uses less digits than its factorization.

40343405553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17717829 (or 17717826 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 36.

Adding to 40343405553 its reverse (35550434304), we get a palindrome (75893839857).

The spelling of 40343405553 in words is "forty billion, three hundred forty-three million, four hundred five thousand, five hundred fifty-three".