128263159165 has 16 divisors (see below), whose sum is σ = 155683565568. Its totient is φ = 101436756736.

The previous prime is 128263159159. The next prime is 128263159177. The reversal of 128263159165 is 561951362821.

It is a cyclic number.

It is not a de Polignac number, because 128263159165 - 2¹⁷ = 128263028093 is a prime.

It is a super-2 number, since 2×128263159165² (a number of 23 digits) contains 22 as substring.

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, 79969 + ... + 512758.

It is an arithmetic number, because the mean of its divisors is an integer number (9730222848).

Almost surely, 2^128263159165 is an apocalyptic number.

It is an amenable number.

128263159165 is a deficient number, since it is larger than the sum of its proper divisors (27420406403).

128263159165 is a wasteful number, since it uses less digits than its factorization.

128263159165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593228.

The product of its digits is 777600, while the sum is 49.

The spelling of 128263159165 in words is "one hundred twenty-eight billion, two hundred sixty-three million, one hundred fifty-nine thousand, one hundred sixty-five".