16253262644220 has 144 divisors (see below), whose sum is σ = 56466868506048. Its totient is φ = 3706972692480.

The previous prime is 16253262644219. The next prime is 16253262644237. The reversal of 16253262644220 is 2244626235261.

16253262644220 is a `hidden beast` number, since 1 + 6 + 2 + 5 + 326 + 264 + 42 + 20 = 666.

16253262644220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13409829 + ... + 14571548.

It is an arithmetic number, because the mean of its divisors is an integer number (392131031292).

Almost surely, 2^{16253262644220} is an apocalyptic number.

16253262644220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16253262644220 is an abundant number, since it is smaller than the sum of its proper divisors (40213605861828).

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

16253262644220 is a wasteful number, since it uses less digits than its factorization.

16253262644220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27981860 (or 27981855 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 45.

Adding to 16253262644220 its reverse (2244626235261), we get a palindrome (18497888879481).

The spelling of 16253262644220 in words is "sixteen trillion, two hundred fifty-three billion, two hundred sixty-two million, six hundred forty-four thousand, two hundred twenty".