21253241067060 has 48 divisors (see below), whose sum is σ = 59570361531072. Its totient is φ = 5661694137600.

The previous prime is 21253241067031. The next prime is 21253241067061. The reversal of 21253241067060 is 6076014235212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21253241067061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182341681 + ... + 182458200.

It is an arithmetic number, because the mean of its divisors is an integer number (1241049198564).

Almost surely, 2^{21253241067060} is an apocalyptic number.

21253241067060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21253241067060 is an abundant number, since it is smaller than the sum of its proper divisors (38317120464012).

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

21253241067060 is a wasteful number, since it uses less digits than its factorization.

21253241067060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364800864 (or 364800862 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The spelling of 21253241067060 in words is "twenty-one trillion, two hundred fifty-three billion, two hundred forty-one million, sixty-seven thousand, sixty".