3611020018320 has 1280 divisors, whose sum is σ = 15191027712000. Its totient is φ = 776438784000.

The previous prime is 3611020018223. The next prime is 3611020018393. The reversal of 3611020018320 is 238100201163.

It is a happy number.

3611020018320 is a `hidden beast` number, since 3 + 611 + 0 + 2 + 0 + 0 + 18 + 32 + 0 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 1426715455 + ... + 1426717985.

It is an arithmetic number, because the mean of its divisors is an integer number (11867990400).

Almost surely, 2^{3611020018320} is an apocalyptic number.

3611020018320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3611020018320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7595513856000).

3611020018320 is an abundant number, since it is smaller than the sum of its proper divisors (11580007693680).

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

3611020018320 is a wasteful number, since it uses less digits than its factorization.

3611020018320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2757 (or 2745 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

Adding to 3611020018320 its reverse (238100201163), we get a palindrome (3849120219483).

The spelling of 3611020018320 in words is "three trillion, six hundred eleven billion, twenty million, eighteen thousand, three hundred twenty".