128833616356 has 27 divisors (see below), whose sum is σ = 226858119817. Its totient is φ = 64019468240.

The previous prime is 128833616333. The next prime is 128833616371. The reversal of 128833616356 is 653616338821.

The square root of 128833616356 is 358934.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 126230984100 + 2602632256 = 355290^2 + 51016^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 141419541 + ... + 141420451.

Almost surely, 2^128833616356 is an apocalyptic number.

128833616356 is the 358934-th square number.

It is an amenable number.

128833616356 is a deficient number, since it is larger than the sum of its proper divisors (98024503461).

128833616356 is an frugal number, since it uses more digits than its factorization.

128833616356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2220 (or 1110 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 52.

The spelling of 128833616356 in words is "one hundred twenty-eight billion, eight hundred thirty-three million, six hundred sixteen thousand, three hundred fifty-six".