1606321152 has 88 divisors (see below), whose sum is σ = 4757228000. Its totient is φ = 535431168.

The previous prime is 1606321117. The next prime is 1606321163. The reversal of 1606321152 is 2511236061.

1606321152 is a `hidden beast` number, since 1 + 606 + 3 + 2 + 1 + 1 + 52 = 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 7 ways as a sum of consecutive naturals, for example, 1402 + ... + 56697.

Almost surely, 2^1606321152 is an apocalyptic number.

1606321152 is a gapful number since it is divisible by the number (12) 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 1606321152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2378614000).

1606321152 is an abundant number, since it is smaller than the sum of its proper divisors (3150906848).

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

1606321152 is an equidigital number, since it uses as much as digits as its factorization.

1606321152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58128 (or 58104 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 1606321152 is about 40078.9365128368. The cubic root of 1606321152 is about 1171.1453347235.

The spelling of 1606321152 in words is "one billion, six hundred six million, three hundred twenty-one thousand, one hundred fifty-two".