2165148368536 has 8 divisors (see below), whose sum is σ = 4059653191020. Its totient is φ = 1082574184264.

The previous prime is 2165148368533. The next prime is 2165148368549. The reversal of 2165148368536 is 6358638415612.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2165148368533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135321773026 + ... + 135321773041.

Almost surely, 2^{2165148368536} is an apocalyptic number.

It is an amenable number.

2165148368536 is a deficient number, since it is larger than the sum of its proper divisors (1894504822484).

2165148368536 is a wasteful number, since it uses less digits than its factorization.

2165148368536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270643546073 (or 270643546069 counting only the distinct ones).

The product of its digits is 24883200, while the sum is 58.

The spelling of 2165148368536 in words is "two trillion, one hundred sixty-five billion, one hundred forty-eight million, three hundred sixty-eight thousand, five hundred thirty-six".