612060221160 has 128 divisors (see below), whose sum is σ = 2041055625600. Its totient is φ = 163147668480.

The previous prime is 612060221153. The next prime is 612060221161. The reversal of 612060221160 is 61122060216.

612060221160 is a `hidden beast` number, since 6 + 1 + 20 + 602 + 21 + 16 + 0 = 666.

It is a super-2 number, since 2×612060221160² (a number of 24 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (612060221161) 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, 2486352 + ... + 2721408.

It is an arithmetic number, because the mean of its divisors is an integer number (15945747075).

Almost surely, 2^612060221160 is an apocalyptic number.

612060221160 is a gapful number since it is divisible by the number (60) 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 612060221160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1020527812800).

612060221160 is an abundant number, since it is smaller than the sum of its proper divisors (1428995404440).

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

612060221160 is a wasteful number, since it uses less digits than its factorization.

612060221160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237488 (or 237478 counting only the distinct ones).

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

Adding to 612060221160 its reverse (61122060216), we get a palindrome (673182281376).

The spelling of 612060221160 in words is "six hundred twelve billion, sixty million, two hundred twenty-one thousand, one hundred sixty".