1161580338626 has 4 divisors (see below), whose sum is σ = 1742370507942. Its totient is φ = 580790169312.

The previous prime is 1161580338623. The next prime is 1161580338691. The reversal of 1161580338626 is 6268330851611.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 965551890625 + 196028448001 = 982625^2 + 442751^2 .

It is not an unprimeable number, because it can be changed into a prime (1161580338623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 290395084655 + ... + 290395084658.

Almost surely, 2^{1161580338626} is an apocalyptic number.

1161580338626 is a deficient number, since it is larger than the sum of its proper divisors (580790169316).

1161580338626 is an equidigital number, since it uses as much as digits as its factorization.

1161580338626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580790169315.

The product of its (nonzero) digits is 1244160, while the sum is 50.

The spelling of 1161580338626 in words is "one trillion, one hundred sixty-one billion, five hundred eighty million, three hundred thirty-eight thousand, six hundred twenty-six".