1645330152 has 16 divisors (see below), whose sum is σ = 4113325440. Its totient is φ = 548443376.

The previous prime is 1645330151. The next prime is 1645330163. The reversal of 1645330152 is 2510335461.

It is a super-2 number, since 2×1645330152² = 5414222618160686208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1645330151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34277688 + ... + 34277735.

It is an arithmetic number, because the mean of its divisors is an integer number (257082840).

Almost surely, 2^1645330152 is an apocalyptic number.

1645330152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1645330152 is an abundant number, since it is smaller than the sum of its proper divisors (2467995288).

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

1645330152 is a wasteful number, since it uses less digits than its factorization.

1645330152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68555432 (or 68555428 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 1645330152 is about 40562.6694387832. The cubic root of 1645330152 is about 1180.5499093500.

The spelling of 1645330152 in words is "one billion, six hundred forty-five million, three hundred thirty thousand, one hundred fifty-two".