1606117161091 has 8 divisors (see below), whose sum is σ = 1675977622560. Its totient is φ = 1536259139712.

The previous prime is 1606117161083. The next prime is 1606117161119. The reversal of 1606117161091 is 1901617116061.

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 1606117161091 - 2³ = 1606117161083 is a prime.

It is a super-2 number, since 2×1606117161091² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1606117161491) 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, 804901 + ... + 1964713.

It is an arithmetic number, because the mean of its divisors is an integer number (209497202820).

Almost surely, 2^{1606117161091} is an apocalyptic number.

1606117161091 is a deficient number, since it is larger than the sum of its proper divisors (69860461469).

1606117161091 is a wasteful number, since it uses less digits than its factorization.

1606117161091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220045.

The product of its (nonzero) digits is 13608, while the sum is 40.

The spelling of 1606117161091 in words is "one trillion, six hundred six billion, one hundred seventeen million, one hundred sixty-one thousand, ninety-one".