40012231155 has 16 divisors (see below), whose sum is σ = 68944152480. Its totient is φ = 19698329088.

The previous prime is 40012231073. The next prime is 40012231177. The reversal of 40012231155 is 55113221004.

It is a happy number.

40012231155 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 40012231155 - 2⁷ = 40012231027 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102595270 + ... + 102595659.

It is an arithmetic number, because the mean of its divisors is an integer number (4309009530).

Almost surely, 2^40012231155 is an apocalyptic number.

40012231155 is a deficient number, since it is larger than the sum of its proper divisors (28931921325).

40012231155 is a wasteful number, since it uses less digits than its factorization.

40012231155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205190950.

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 40012231155 its reverse (55113221004), we get a palindrome (95125452159).

The spelling of 40012231155 in words is "forty billion, twelve million, two hundred thirty-one thousand, one hundred fifty-five".