3653121116 has 24 divisors (see below), whose sum is σ = 6469554000. Its totient is φ = 1804752000.

The previous prime is 3653121083. The next prime is 3653121161. The reversal of 3653121116 is 6111213563.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192536 + ... + 210656.

It is an arithmetic number, because the mean of its divisors is an integer number (269564750).

Almost surely, 2^3653121116 is an apocalyptic number.

It is an amenable number.

3653121116 is a deficient number, since it is larger than the sum of its proper divisors (2816432884).

3653121116 is a wasteful number, since it uses less digits than its factorization.

3653121116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18725 (or 18723 counting only the distinct ones).

The product of its digits is 3240, while the sum is 29.

The square root of 3653121116 is about 60441.0548882132. The cubic root of 3653121116 is about 1540.1204600213.

Adding to 3653121116 its reverse (6111213563), we get a palindrome (9764334679).

The spelling of 3653121116 in words is "three billion, six hundred fifty-three million, one hundred twenty-one thousand, one hundred sixteen".