17042123155 has 48 divisors (see below), whose sum is σ = 21587295744. Its totient is φ = 12907784000.

The previous prime is 17042123143. The next prime is 17042123167. The reversal of 17042123155 is 55132124071.

It is an interprime number because it is at equal distance from previous prime (17042123143) and next prime (17042123167).

It is not a de Polignac number, because 17042123155 - 2¹³ = 17042114963 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 67896780 + ... + 67897030.

It is an arithmetic number, because the mean of its divisors is an integer number (449735328).

Almost surely, 2^17042123155 is an apocalyptic number.

17042123155 is a deficient number, since it is larger than the sum of its proper divisors (4545172589).

17042123155 is an equidigital number, since it uses as much as digits as its factorization.

17042123155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504 (or 445 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 31.

The spelling of 17042123155 in words is "seventeen billion, forty-two million, one hundred twenty-three thousand, one hundred fifty-five".