4145643660 has 48 divisors (see below), whose sum is σ = 11890926432. Its totient is φ = 1078540800.

The previous prime is 4145643653. The next prime is 4145643679. The reversal of 4145643660 is 663465414.

It is a super-2 number, since 2×4145643660² = 34372722711396391200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 840151 + ... + 845070.

It is an arithmetic number, because the mean of its divisors is an integer number (247727634).

Almost surely, 2^4145643660 is an apocalyptic number.

It is an amenable number.

4145643660 is an abundant number, since it is smaller than the sum of its proper divisors (7745282772).

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

4145643660 is a wasteful number, since it uses less digits than its factorization.

4145643660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1685274 (or 1685272 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 39.

The square root of 4145643660 is about 64386.6729999307. The cubic root of 4145643660 is about 1606.4380779531.

The spelling of 4145643660 in words is "four billion, one hundred forty-five million, six hundred forty-three thousand, six hundred sixty".