53045021660 has 24 divisors (see below), whose sum is σ = 112104071520. Its totient is φ = 21082860864.

The previous prime is 53045021611. The next prime is 53045021669. The reversal of 53045021660 is 6612054035.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53045021669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8443520 + ... + 8449799.

It is an arithmetic number, because the mean of its divisors is an integer number (4671002980).

Almost surely, 2^53045021660 is an apocalyptic number.

It is an amenable number.

53045021660 is an abundant number, since it is smaller than the sum of its proper divisors (59059049860).

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

53045021660 is a wasteful number, since it uses less digits than its factorization.

53045021660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16893485 (or 16893483 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 53045021660 its reverse (6612054035), we get a palindrome (59657075695).

The spelling of 53045021660 in words is "fifty-three billion, forty-five million, twenty-one thousand, six hundred sixty".