618472116 has 72 divisors (see below), whose sum is σ = 1717235520. Its totient is φ = 186810624.

The previous prime is 618472079. The next prime is 618472123. The reversal of 618472116 is 611274816.

It is a happy number.

618472116 is a `hidden beast` number, since 618 + 4 + 7 + 21 + 16 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3925 + ... + 35388.

Almost surely, 2^618472116 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 618472116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (858617760).

618472116 is an abundant number, since it is smaller than the sum of its proper divisors (1098763404).

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

618472116 is a wasteful number, since it uses less digits than its factorization.

618472116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39365 (or 39360 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 618472116 is about 24869.0996218198. The cubic root of 618472116 is about 852.0008761480. Note that the first 3 decimals are identical.

The spelling of 618472116 in words is "six hundred eighteen million, four hundred seventy-two thousand, one hundred sixteen".