1161606202213 has 4 divisors (see below), whose sum is σ = 1186321227840. Its totient is φ = 1136891176588.

The previous prime is 1161606202193. The next prime is 1161606202223. The reversal of 1161606202213 is 3122026061611.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1161606202213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161606202223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12357512743 + ... + 12357512836.

It is an arithmetic number, because the mean of its divisors is an integer number (296580306960).

Almost surely, 2^{1161606202213} is an apocalyptic number.

It is an amenable number.

1161606202213 is a deficient number, since it is larger than the sum of its proper divisors (24715025627).

1161606202213 is an equidigital number, since it uses as much as digits as its factorization.

1161606202213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24715025626.

The product of its (nonzero) digits is 5184, while the sum is 31.

The spelling of 1161606202213 in words is "one trillion, one hundred sixty-one billion, six hundred six million, two hundred two thousand, two hundred thirteen".