1161120659345 has 16 divisors (see below), whose sum is σ = 1405743029712. Its totient is φ = 920631828480.

The previous prime is 1161120659341. The next prime is 1161120659351. The reversal of 1161120659345 is 5439560211611.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 61879547536 + 1099241111809 = 248756^2 + 1048447^2 .

It is not a de Polignac number, because 1161120659345 - 2² = 1161120659341 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1161120659296 and 1161120659305.

It is not an unprimeable number, because it can be changed into a prime (1161120659341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16678529 + ... + 16748001.

It is an arithmetic number, because the mean of its divisors is an integer number (87858939357).

Almost surely, 2^{1161120659345} is an apocalyptic number.

It is an amenable number.

1161120659345 is a deficient number, since it is larger than the sum of its proper divisors (244622370367).

1161120659345 is a wasteful number, since it uses less digits than its factorization.

1161120659345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99172.

The product of its (nonzero) digits is 194400, while the sum is 44.

The spelling of 1161120659345 in words is "one trillion, one hundred sixty-one billion, one hundred twenty million, six hundred fifty-nine thousand, three hundred forty-five".