1618270056 has 128 divisors (see below), whose sum is σ = 4909766400. Its totient is φ = 490855680.

The previous prime is 1618270051. The next prime is 1618270063. The reversal of 1618270056 is 6500728161.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1618270056.

It is not an unprimeable number, because it can be changed into a prime (1618270051) 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, 195310 + ... + 203426.

It is an arithmetic number, because the mean of its divisors is an integer number (38357550).

Almost surely, 2^1618270056 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 1618270056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2454883200).

1618270056 is an abundant number, since it is smaller than the sum of its proper divisors (3291496344).

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

1618270056 is a wasteful number, since it uses less digits than its factorization.

1618270056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8216 (or 8206 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 1618270056 is about 40227.7274525917. The cubic root of 1618270056 is about 1174.0420877872.

The spelling of 1618270056 in words is "one billion, six hundred eighteen million, two hundred seventy thousand, fifty-six".