160644453520 has 40 divisors (see below), whose sum is σ = 373560985656. Its totient is φ = 64247006208.

The previous prime is 160644453517. The next prime is 160644453533. The reversal of 160644453520 is 25354446061.

160644453520 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 49984439184 + 110660014336 = 223572^2 + 332656^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

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, 320514 + ... + 651166.

Almost surely, 2^160644453520 is an apocalyptic number.

160644453520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

160644453520 is an abundant number, since it is smaller than the sum of its proper divisors (212916532136).

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

160644453520 is a wasteful number, since it uses less digits than its factorization.

160644453520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336739 (or 336733 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 40.

Adding to 160644453520 its reverse (25354446061), we get a palindrome (185998899581).

The spelling of 160644453520 in words is "one hundred sixty billion, six hundred forty-four million, four hundred fifty-three thousand, five hundred twenty".