4260221553564 has 36 divisors (see below), whose sum is σ = 11237106128976. Its totient is φ = 1358331509568.

The previous prime is 4260221553563. The next prime is 4260221553619. The reversal of 4260221553564 is 4653551220624.

4260221553564 is a `hidden beast` number, since 4 + 2 + 6 + 0 + 22 + 15 + 53 + 564 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×4260221553564² (a number of 26 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4260221553563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2572596729 + ... + 2572598384.

It is an arithmetic number, because the mean of its divisors is an integer number (312141836916).

Almost surely, 2^{4260221553564} is an apocalyptic number.

It is an amenable number.

4260221553564 is an abundant number, since it is smaller than the sum of its proper divisors (6976884575412).

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

4260221553564 is a wasteful number, since it uses less digits than its factorization.

4260221553564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5145195146 (or 5145195141 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 45.

The spelling of 4260221553564 in words is "four trillion, two hundred sixty billion, two hundred twenty-one million, five hundred fifty-three thousand, five hundred sixty-four".