2153511216116 has 12 divisors (see below), whose sum is σ = 4058540368932. Its totient is φ = 993928253568.

The previous prime is 2153511216089. The next prime is 2153511216139. The reversal of 2153511216116 is 6116121153512.

It can be written as a sum of positive squares in 2 ways, for example, as 820419292900 + 1333091923216 = 905770^2 + 1154596^2 .

It is a super-2 number, since 2×2153511216116² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20706838565 + ... + 20706838668.

It is an arithmetic number, because the mean of its divisors is an integer number (338211697411).

Almost surely, 2^{2153511216116} is an apocalyptic number.

2153511216116 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2153511216116 is a deficient number, since it is larger than the sum of its proper divisors (1905029152816).

2153511216116 is a wasteful number, since it uses less digits than its factorization.

2153511216116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41413677250 (or 41413677248 counting only the distinct ones).

The product of its digits is 10800, while the sum is 35.

Adding to 2153511216116 its reverse (6116121153512), we get a palindrome (8269632369628).

The spelling of 2153511216116 in words is "two trillion, one hundred fifty-three billion, five hundred eleven million, two hundred sixteen thousand, one hundred sixteen".