1161227647735 has 4 divisors (see below), whose sum is σ = 1393473177288. Its totient is φ = 928982118184.

The previous prime is 1161227647717. The next prime is 1161227647843. The reversal of 1161227647735 is 5377467221611.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1161227647735 - 2²³ = 1161219259127 is a prime.

It is a super-2 number, since 2×1161227647735² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116122764769 + ... + 116122764778.

It is an arithmetic number, because the mean of its divisors is an integer number (348368294322).

Almost surely, 2^{1161227647735} is an apocalyptic number.

1161227647735 is a deficient number, since it is larger than the sum of its proper divisors (232245529553).

1161227647735 is an equidigital number, since it uses as much as digits as its factorization.

1161227647735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232245529552.

The product of its digits is 2963520, while the sum is 52.

The spelling of 1161227647735 in words is "one trillion, one hundred sixty-one billion, two hundred twenty-seven million, six hundred forty-seven thousand, seven hundred thirty-five".