1161606443 has 8 divisors (see below), whose sum is σ = 1170165312. Its totient is φ = 1153078216.

The previous prime is 1161606437. The next prime is 1161606461. The reversal of 1161606443 is 3446061611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1161606443 - 2¹⁶ = 1161540907 is a prime.

It is a super-2 number, since 2×1161606443² = 2698659056838224498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1161606463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71396 + ... + 86142.

It is an arithmetic number, because the mean of its divisors is an integer number (146270664).

Almost surely, 2^1161606443 is an apocalyptic number.

1161606443 is a deficient number, since it is larger than the sum of its proper divisors (8558869).

1161606443 is a wasteful number, since it uses less digits than its factorization.

1161606443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15321.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 1161606443 is about 34082.3479678264. The cubic root of 1161606443 is about 1051.2023846458.

The spelling of 1161606443 in words is "one billion, one hundred sixty-one million, six hundred six thousand, four hundred forty-three".