2116262555541 has 6 divisors (see below), whose sum is σ = 3056823691350. Its totient is φ = 1410841703688.

The previous prime is 2116262555513. The next prime is 2116262555569. The reversal of 2116262555541 is 1455552626112.

It is a happy number.

2116262555541 is a `hidden beast` number, since 2 + 1 + 16 + 2 + 625 + 5 + 5 + 5 + 4 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (2116262555513) and next prime (2116262555569).

It can be written as a sum of positive squares in only one way, i.e., 1730461320900 + 385801234641 = 1315470^2 + 621129^2 .

It is not a de Polignac number, because 2116262555541 - 2⁷ = 2116262555413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2116262550541) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 117570141966 + ... + 117570141983.

It is an arithmetic number, because the mean of its divisors is an integer number (509470615225).

Almost surely, 2^{2116262555541} is an apocalyptic number.

It is an amenable number.

2116262555541 is a deficient number, since it is larger than the sum of its proper divisors (940561135809).

2116262555541 is a wasteful number, since it uses less digits than its factorization.

2116262555541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235140283955 (or 235140283952 counting only the distinct ones).

The product of its digits is 720000, while the sum is 45.

The spelling of 2116262555541 in words is "two trillion, one hundred sixteen billion, two hundred sixty-two million, five hundred fifty-five thousand, five hundred forty-one".