21602350132160 has 56 divisors (see below), whose sum is σ = 58789252865760. Its totient is φ = 7406520044544.

The previous prime is 21602350132081. The next prime is 21602350132169. The reversal of 21602350132160 is 6123105320612.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21602350132169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4821950915 + ... + 4821955394.

Almost surely, 2^{21602350132160} is an apocalyptic number.

21602350132160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21602350132160 is an abundant number, since it is smaller than the sum of its proper divisors (37186902733600).

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

21602350132160 is an equidigital number, since it uses as much as digits as its factorization.

21602350132160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9643906333 (or 9643906323 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

Adding to 21602350132160 its reverse (6123105320612), we get a palindrome (27725455452772).

The spelling of 21602350132160 in words is "twenty-one trillion, six hundred two billion, three hundred fifty million, one hundred thirty-two thousand, one hundred sixty".