40403165155 has 4 divisors (see below), whose sum is σ = 48483798192. Its totient is φ = 32322532120.

The previous prime is 40403165149. The next prime is 40403165161. The reversal of 40403165155 is 55156130404.

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

It is an interprime number because it is at equal distance from previous prime (40403165149) and next prime (40403165161).

It is not a de Polignac number, because 40403165155 - 2⁹ = 40403164643 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40403165155.

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, 4040316511 + ... + 4040316520.

It is an arithmetic number, because the mean of its divisors is an integer number (12120949548).

Almost surely, 2^40403165155 is an apocalyptic number.

40403165155 is a deficient number, since it is larger than the sum of its proper divisors (8080633037).

40403165155 is an equidigital number, since it uses as much as digits as its factorization.

40403165155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8080633036.

The product of its (nonzero) digits is 36000, while the sum is 34.

Adding to 40403165155 its reverse (55156130404), we get a palindrome (95559295559).

The spelling of 40403165155 in words is "forty billion, four hundred three million, one hundred sixty-five thousand, one hundred fifty-five".