2156365336 has 16 divisors (see below), whose sum is σ = 4088615400. Its totient is φ = 1066067904.

The previous prime is 2156365313. The next prime is 2156365339. The reversal of 2156365336 is 6335636512.

It is a happy number.

It is a super-3 number, since 3×2156365336³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2156365339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1513590 + ... + 1515013.

Almost surely, 2^2156365336 is an apocalyptic number.

It is an amenable number.

2156365336 is a deficient number, since it is larger than the sum of its proper divisors (1932250064).

2156365336 is a wasteful number, since it uses less digits than its factorization.

2156365336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3028698 (or 3028694 counting only the distinct ones).

The product of its digits is 291600, while the sum is 40.

The square root of 2156365336 is about 46436.6809322113. The cubic root of 2156365336 is about 1291.9353471148.

The spelling of 2156365336 in words is "two billion, one hundred fifty-six million, three hundred sixty-five thousand, three hundred thirty-six".