165011115 has 8 divisors (see below), whose sum is σ = 264017808. Its totient is φ = 88005920.

The previous prime is 165011111. The next prime is 165011117. The reversal of 165011115 is 511110561.

It is a happy number.

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

It is not a de Polignac number, because 165011115 - 2² = 165011111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 165011091 and 165011100.

It is not an unprimeable number, because it can be changed into a prime (165011111) 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, 5500356 + ... + 5500385.

It is an arithmetic number, because the mean of its divisors is an integer number (33002226).

Almost surely, 2^165011115 is an apocalyptic number.

165011115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

165011115 is a deficient number, since it is larger than the sum of its proper divisors (99006693).

165011115 is a wasteful number, since it uses less digits than its factorization.

165011115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11000749.

The product of its (nonzero) digits is 150, while the sum is 21.

The square root of 165011115 is about 12845.6652221674. The cubic root of 165011115 is about 548.4929708505.

Adding to 165011115 its reverse (511110561), we get a palindrome (676121676).

The spelling of 165011115 in words is "one hundred sixty-five million, eleven thousand, one hundred fifteen".