155959915105 has 8 divisors (see below), whose sum is σ = 187484320512. Its totient is φ = 124546317168.

The previous prime is 155959915061. The next prime is 155959915121. The reversal of 155959915105 is 501519959551.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155959915105 is a prime.

It is a super-2 number, since 2×155959915105² (a number of 23 digits) contains 22 as substring.

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, 27698769 + ... + 27704398.

It is an arithmetic number, because the mean of its divisors is an integer number (23435540064).

Almost surely, 2^155959915105 is an apocalyptic number.

It is an amenable number.

155959915105 is a deficient number, since it is larger than the sum of its proper divisors (31524405407).

155959915105 is an equidigital number, since it uses as much as digits as its factorization.

155959915105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55403735.

The product of its (nonzero) digits is 2278125, while the sum is 55.

The spelling of 155959915105 in words is "one hundred fifty-five billion, nine hundred fifty-nine million, nine hundred fifteen thousand, one hundred five".