21401115530160 has 160 divisors (see below), whose sum is σ = 71615127767040. Its totient is φ = 5270599527424.

The previous prime is 21401115530089. The next prime is 21401115530167. The reversal of 21401115530160 is 6103551110412.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (21401115530167) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66684984 + ... + 67005143.

It is an arithmetic number, because the mean of its divisors is an integer number (447594548544).

Almost surely, 2^{21401115530160} is an apocalyptic number.

21401115530160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21401115530160 is an abundant number, since it is smaller than the sum of its proper divisors (50214012236880).

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

21401115530160 is a wasteful number, since it uses less digits than its factorization.

21401115530160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133690195 (or 133690189 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 30.

Adding to 21401115530160 its reverse (6103551110412), we get a palindrome (27504666640572).

The spelling of 21401115530160 in words is "twenty-one trillion, four hundred one billion, one hundred fifteen million, five hundred thirty thousand, one hundred sixty".