128151519156 has 18 divisors (see below), whose sum is σ = 323938562402. Its totient is φ = 42717173040.

The previous prime is 128151519151. The next prime is 128151519193. The reversal of 128151519156 is 651915151821.

128151519156 is a `hidden beast` number, since 1 + 2 + 81 + 5 + 1 + 519 + 1 + 56 = 666.

It can be written as a sum of positive squares in only one way, i.e., 102080250000 + 26071269156 = 319500^2 + 161466^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128151519151) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1779882175 + ... + 1779882246.

Almost surely, 2^128151519156 is an apocalyptic number.

It is an amenable number.

128151519156 is an abundant number, since it is smaller than the sum of its proper divisors (195787043246).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128151519156 is a wasteful number, since it uses less digits than its factorization.

128151519156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3559764431 (or 3559764426 counting only the distinct ones).

The product of its digits is 108000, while the sum is 45.

The spelling of 128151519156 in words is "one hundred twenty-eight billion, one hundred fifty-one million, five hundred nineteen thousand, one hundred fifty-six".