653252122000 has 40 divisors (see below), whose sum is σ = 1579563635832. Its totient is φ = 261300848000.

The previous prime is 653252121997. The next prime is 653252122001. The reversal of 653252122000 is 221252356.

It can be written as a sum of positive squares in 4 ways, for example, as 25918424064 + 627333697936 = 160992^2 + 792044^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 653252122000.

It is not an unprimeable number, because it can be changed into a prime (653252122001) 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, 163311031 + ... + 163315030.

Almost surely, 2^653252122000 is an apocalyptic number.

It is an amenable number.

653252122000 is an abundant number, since it is smaller than the sum of its proper divisors (926311513832).

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

653252122000 is a wasteful number, since it uses less digits than its factorization.

653252122000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326626084 (or 326626068 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 653252122000 its reverse (221252356), we get a palindrome (653473374356).

The spelling of 653252122000 in words is "six hundred fifty-three billion, two hundred fifty-two million, one hundred twenty-two thousand".