21477334541120 has 224 divisors, whose sum is σ = 54200174129280. Its totient is φ = 8083704545280.

The previous prime is 21477334541051. The next prime is 21477334541167. The reversal of 21477334541120 is 2114543377412.

It is a super-2 number, since 2×21477334541120² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 534734159 + ... + 534774321.

Almost surely, 2^{21477334541120} is an apocalyptic number.

21477334541120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21477334541120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27100087064640).

21477334541120 is an abundant number, since it is smaller than the sum of its proper divisors (32722839588160).

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

21477334541120 is a wasteful number, since it uses less digits than its factorization.

21477334541120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40793 (or 40783 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 44.

The spelling of 21477334541120 in words is "twenty-one trillion, four hundred seventy-seven billion, three hundred thirty-four million, five hundred forty-one thousand, one hundred twenty".