2116161012 has 24 divisors (see below), whose sum is σ = 5643096256. Its totient is φ = 604617408.

The previous prime is 2116160999. The next prime is 2116161013. The reversal of 2116161012 is 2101616112.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 2116161012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2116161013) 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, 12596113 + ... + 12596280.

Almost surely, 2^2116161012 is an apocalyptic number.

It is an amenable number.

2116161012 is an abundant number, since it is smaller than the sum of its proper divisors (3526935244).

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

2116161012 is a wasteful number, since it uses less digits than its factorization.

2116161012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25192407 (or 25192405 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 2116161012 is about 46001.7500971430. The cubic root of 2116161012 is about 1283.8557669336.

Adding to 2116161012 its reverse (2101616112), we get a palindrome (4217777124).

The spelling of 2116161012 in words is "two billion, one hundred sixteen million, one hundred sixty-one thousand, twelve".