155717005161 has 16 divisors (see below), whose sum is σ = 220220814528. Its totient is φ = 97533657600.

The previous prime is 155717005141. The next prime is 155717005183. The reversal of 155717005161 is 161500717551.

155717005161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 155717005161 - 2¹⁹ = 155716480873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155717005111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2644500 + ... + 2702741.

It is an arithmetic number, because the mean of its divisors is an integer number (13763800908).

Almost surely, 2^155717005161 is an apocalyptic number.

It is an amenable number.

155717005161 is a deficient number, since it is larger than the sum of its proper divisors (64503809367).

155717005161 is a wasteful number, since it uses less digits than its factorization.

155717005161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5347832.

The product of its (nonzero) digits is 36750, while the sum is 39.

The spelling of 155717005161 in words is "one hundred fifty-five billion, seven hundred seventeen million, five thousand, one hundred sixty-one".