1128096770161 has 9 divisors (see below), whose sum is σ = 1190616504843. Its totient is φ = 1068704137800.

The previous prime is 1128096770117. The next prime is 1128096770233. The reversal of 1128096770161 is 1610776908211.

The square root of 1128096770161 is 1062119.

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., 1074189217761 + 53907552400 = 1036431^2 + 232180^2 .

It is not a de Polignac number, because 1128096770161 - 2⁷ = 1128096770033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1128096776161) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 20152311 + ... + 20208211.

Almost surely, 2^{1128096770161} is an apocalyptic number.

1128096770161 is the 1062119-th square number.

1128096770161 is the 531060-th centered octagonal number.

It is an amenable number.

1128096770161 is a deficient number, since it is larger than the sum of its proper divisors (62519734682).

1128096770161 is an frugal number, since it uses more digits than its factorization.

1128096770161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111840 (or 55920 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 49.

Multiplying 1128096770161 by its sum of digits (49), we get a square (55276741737889 = 7434833²).

The spelling of 1128096770161 in words is "one trillion, one hundred twenty-eight billion, ninety-six million, seven hundred seventy thousand, one hundred sixty-one".