2113634206164 has 96 divisors (see below), whose sum is σ = 5625037668096. Its totient is φ = 611937331200.

The previous prime is 2113634206157. The next prime is 2113634206241. The reversal of 2113634206164 is 4616024363112.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10527114 + ... + 10726014.

It is an arithmetic number, because the mean of its divisors is an integer number (58594142376).

Almost surely, 2^{2113634206164} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2113634206164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2812518834048).

2113634206164 is an abundant number, since it is smaller than the sum of its proper divisors (3511403461932).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2113634206164 is a wasteful number, since it uses less digits than its factorization.

2113634206164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202945 (or 202943 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 39.

Adding to 2113634206164 its reverse (4616024363112), we get a palindrome (6729658569276).

The spelling of 2113634206164 in words is "two trillion, one hundred thirteen billion, six hundred thirty-four million, two hundred six thousand, one hundred sixty-four".