4153561644 has 24 divisors (see below), whose sum is σ = 9897850368. Its totient is φ = 1355062480.

The previous prime is 4153561639. The next prime is 4153561661. The reversal of 4153561644 is 4461653514.

4153561644 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×4153561644³ (a number of 30 digits) contains 333 as substring.

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, 3681672 + ... + 3682799.

It is an arithmetic number, because the mean of its divisors is an integer number (412410432).

Almost surely, 2^4153561644 is an apocalyptic number.

It is an amenable number.

4153561644 is an abundant number, since it is smaller than the sum of its proper divisors (5744288724).

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

4153561644 is a wasteful number, since it uses less digits than its factorization.

4153561644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7364525 (or 7364523 counting only the distinct ones).

The product of its digits is 172800, while the sum is 39.

The square root of 4153561644 is about 64448.1314236495. The cubic root of 4153561644 is about 1607.4601678529.

The spelling of 4153561644 in words is "four billion, one hundred fifty-three million, five hundred sixty-one thousand, six hundred forty-four".