21465341445100 has 144 divisors (see below), whose sum is σ = 56038638853120. Its totient is φ = 6971852736000.

The previous prime is 21465341445089. The next prime is 21465341445101. The reversal of 21465341445100 is 154414356412.

It is not an unprimeable number, because it can be changed into a prime (21465341445101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 490043200 + ... + 490087000.

Almost surely, 2^{21465341445100} is an apocalyptic number.

21465341445100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21465341445100 is an abundant number, since it is smaller than the sum of its proper divisors (34573297408020).

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

21465341445100 is a wasteful number, since it uses less digits than its factorization.

21465341445100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80688 (or 80681 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 40.

The spelling of 21465341445100 in words is "twenty-one trillion, four hundred sixty-five billion, three hundred forty-one million, four hundred forty-five thousand, one hundred".