40005000155 has 8 divisors (see below), whose sum is σ = 48013247184. Its totient is φ = 31999168800.

The previous prime is 40005000149. The next prime is 40005000181. The reversal of 40005000155 is 55100050004.

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

It is not a de Polignac number, because 40005000155 - 2⁸ = 40004999899 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 567281 + ... + 633890.

It is an arithmetic number, because the mean of its divisors is an integer number (6001655898).

Almost surely, 2^40005000155 is an apocalyptic number.

40005000155 is a deficient number, since it is larger than the sum of its proper divisors (8008247029).

40005000155 is a wasteful number, since it uses less digits than its factorization.

40005000155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1207837.

The product of its (nonzero) digits is 500, while the sum is 20.

Adding to 40005000155 its reverse (55100050004), we get a palindrome (95105050159).

The spelling of 40005000155 in words is "forty billion, five million, one hundred fifty-five", and thus it is an aban number.