40147320155 has 8 divisors (see below), whose sum is σ = 48483643632. Its totient is φ = 31913283168.

The previous prime is 40147320149. The next prime is 40147320193. The reversal of 40147320155 is 55102374104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40147320155 - 2⁸ = 40147319899 is a prime.

It is a super-2 number, since 2×40147320155² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25570757 + ... + 25572326.

It is an arithmetic number, because the mean of its divisors is an integer number (6060455454).

Almost surely, 2^40147320155 is an apocalyptic number.

40147320155 is a deficient number, since it is larger than the sum of its proper divisors (8336323477).

40147320155 is a wasteful number, since it uses less digits than its factorization.

40147320155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51143245.

The product of its (nonzero) digits is 16800, while the sum is 32.

Adding to 40147320155 its reverse (55102374104), we get a palindrome (95249694259).

The spelling of 40147320155 in words is "forty billion, one hundred forty-seven million, three hundred twenty thousand, one hundred fifty-five".