168015091011 has 16 divisors (see below), whose sum is σ = 233770074624. Its totient is φ = 107135498624.

The previous prime is 168015091001. The next prime is 168015091039. The reversal of 168015091011 is 110190510861.

It is a cyclic number.

It is not a de Polignac number, because 168015091011 - 2¹¹ = 168015088963 is a prime.

It is a super-2 number, since 2×168015091011² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (168015091001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2451370 + ... + 2518976.

It is an arithmetic number, because the mean of its divisors is an integer number (14610629664).

Almost surely, 2^168015091011 is an apocalyptic number.

168015091011 is a deficient number, since it is larger than the sum of its proper divisors (65754983613).

168015091011 is a wasteful number, since it uses less digits than its factorization.

168015091011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103650.

The product of its (nonzero) digits is 2160, while the sum is 33.

The spelling of 168015091011 in words is "one hundred sixty-eight billion, fifteen million, ninety-one thousand, eleven".