6155665516 has 96 divisors (see below), whose sum is σ = 14800439808. Its totient is φ = 2162280960.

The previous prime is 6155665511. The next prime is 6155665517.

6155665516 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (6155665511) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 154296 + ... + 190048.

It is an arithmetic number, because the mean of its divisors is an integer number (154171248).

Almost surely, 2^6155665516 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6155665516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7400219904).

6155665516 is an abundant number, since it is smaller than the sum of its proper divisors (8644774292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6155665516 is a wasteful number, since it uses less digits than its factorization.

6155665516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35831 (or 35829 counting only the distinct ones).

The product of its digits is 810000, while the sum is 46.

The square root of 6155665516 is about 78458.0494022124. The cubic root of 6155665516 is about 1832.7012290350.

The spelling of 6155665516 in words is "six billion, one hundred fifty-five million, six hundred sixty-five thousand, five hundred sixteen".