21260554543032 has 32 divisors (see below), whose sum is σ = 60744441552000. Its totient is φ = 6074444155104.

The previous prime is 21260554543031. The next prime is 21260554543049. The reversal of 21260554543032 is 23034545506212.

It is a super-2 number, since 2×21260554543032² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21260554543031) 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, 63275459782 + ... + 63275460117.

It is an arithmetic number, because the mean of its divisors is an integer number (1898263798500).

Almost surely, 2^{21260554543032} is an apocalyptic number.

It is an amenable number.

21260554543032 is an abundant number, since it is smaller than the sum of its proper divisors (39483887008968).

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

21260554543032 is a wasteful number, since it uses less digits than its factorization.

21260554543032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126550919915 (or 126550919911 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 42.

The spelling of 21260554543032 in words is "twenty-one trillion, two hundred sixty billion, five hundred fifty-four million, five hundred forty-three thousand, thirty-two".