1655011116 has 120 divisors (see below), whose sum is σ = 4742481744. Its totient is φ = 499115520.

The previous prime is 1655011109. The next prime is 1655011117. The reversal of 1655011116 is 6111105561.

1655011116 is a `hidden beast` number, since 1 + 655 + 0 + 1 + 1 + 1 + 1 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 1655011116.

It is not an unprimeable number, because it can be changed into a prime (1655011117) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 829416 + ... + 831408.

Almost surely, 2^1655011116 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 1655011116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2371240872).

1655011116 is an abundant number, since it is smaller than the sum of its proper divisors (3087470628).

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

1655011116 is a wasteful number, since it uses less digits than its factorization.

1655011116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2253 (or 2242 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 27.

The square root of 1655011116 is about 40681.8278350420. The cubic root of 1655011116 is about 1182.8607968651.

Adding to 1655011116 its reverse (6111105561), we get a palindrome (7766116677).

The spelling of 1655011116 in words is "one billion, six hundred fifty-five million, eleven thousand, one hundred sixteen".