2113165365 has 64 divisors (see below), whose sum is σ = 3748073472. Its totient is φ = 1011225600.

The previous prime is 2113165343. The next prime is 2113165387. The reversal of 2113165365 is 5635613112.

It is an interprime number because it is at equal distance from previous prime (2113165343) and next prime (2113165387).

It is not a de Polignac number, because 2113165365 - 2⁵ = 2113165333 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3348600 + ... + 3349230.

It is an arithmetic number, because the mean of its divisors is an integer number (58563648).

Almost surely, 2^2113165365 is an apocalyptic number.

It is an amenable number.

2113165365 is a deficient number, since it is larger than the sum of its proper divisors (1634908107).

2113165365 is a wasteful number, since it uses less digits than its factorization.

2113165365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1250.

The product of its digits is 16200, while the sum is 33.

The square root of 2113165365 is about 45969.1784242442. The cubic root of 2113165365 is about 1283.2496701892.

Adding to 2113165365 its reverse (5635613112), we get a palindrome (7748778477).

The spelling of 2113165365 in words is "two billion, one hundred thirteen million, one hundred sixty-five thousand, three hundred sixty-five".