155440502150005 has 16 divisors (see below), whose sum is σ = 188407382851584. Its totient is φ = 123100751064960.

The previous prime is 155440502149981. The next prime is 155440502150033. The reversal of 155440502150005 is 500051205044551.

It is a de Polignac number, because none of the positive numbers 2^k-155440502150005 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 52913781 + ... + 55774090.

It is an arithmetic number, because the mean of its divisors is an integer number (11775461428224).

Almost surely, 2^{155440502150005} is an apocalyptic number.

It is an amenable number.

155440502150005 is a deficient number, since it is larger than the sum of its proper divisors (32966880701579).

155440502150005 is a wasteful number, since it uses less digits than its factorization.

155440502150005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108690756.

The product of its (nonzero) digits is 100000, while the sum is 37.

Adding to 155440502150005 its reverse (500051205044551), we get a palindrome (655491707194556).

The spelling of 155440502150005 in words is "one hundred fifty-five trillion, four hundred forty billion, five hundred two million, one hundred fifty thousand, five".