40012040555 has 4 divisors (see below), whose sum is σ = 48014448672. Its totient is φ = 32009632440.

The previous prime is 40012040503. The next prime is 40012040581. The reversal of 40012040555 is 55504021004.

40012040555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 40012040555 - 2¹² = 40012036459 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4001204051 + ... + 4001204060.

It is an arithmetic number, because the mean of its divisors is an integer number (12003612168).

Almost surely, 2^40012040555 is an apocalyptic number.

40012040555 is a deficient number, since it is larger than the sum of its proper divisors (8002408117).

40012040555 is an equidigital number, since it uses as much as digits as its factorization.

40012040555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8002408116.

The product of its (nonzero) digits is 4000, while the sum is 26.

Adding to 40012040555 its reverse (55504021004), we get a palindrome (95516061559).

The spelling of 40012040555 in words is "forty billion, twelve million, forty thousand, five hundred fifty-five".