21340485162 has 24 divisors (see below), whose sum is σ = 46286273124. Its totient is φ = 7106025024.

The previous prime is 21340485143. The next prime is 21340485197. The reversal of 21340485162 is 26158404312.

It is a happy number.

21340485162 is a `hidden beast` number, since 2 + 13 + 4 + 0 + 485 + 162 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 21228781401 + 111703761 = 145701^2 + 10569^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 604873 + ... + 639180.

Almost surely, 2^21340485162 is an apocalyptic number.

21340485162 is an abundant number, since it is smaller than the sum of its proper divisors (24945787962).

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

21340485162 is a wasteful number, since it uses less digits than its factorization.

21340485162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245014 (or 1245011 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

Adding to 21340485162 its reverse (26158404312), we get a palindrome (47498889474).

The spelling of 21340485162 in words is "twenty-one billion, three hundred forty million, four hundred eighty-five thousand, one hundred sixty-two".