1161511404422 has 4 divisors (see below), whose sum is σ = 1742267106636. Its totient is φ = 580755702210.

The previous prime is 1161511404421. The next prime is 1161511404503. The reversal of 1161511404422 is 2244041151611.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161511404421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 290377851104 + ... + 290377851107.

It is an arithmetic number, because the mean of its divisors is an integer number (435566776659).

Almost surely, 2^{1161511404422} is an apocalyptic number.

1161511404422 is a deficient number, since it is larger than the sum of its proper divisors (580755702214).

1161511404422 is an equidigital number, since it uses as much as digits as its factorization.

1161511404422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580755702213.

The product of its (nonzero) digits is 7680, while the sum is 32.

The spelling of 1161511404422 in words is "one trillion, one hundred sixty-one billion, five hundred eleven million, four hundred four thousand, four hundred twenty-two".