21010162824 has 48 divisors (see below), whose sum is σ = 65031457920. Its totient is φ = 6002903520.

The previous prime is 21010162813. The next prime is 21010162837. The reversal of 21010162824 is 42826101012.

21010162824 is a `hidden beast` number, since 2 + 1 + 0 + 10 + 1 + 628 + 24 = 666.

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, 20842912 + ... + 20843919.

It is an arithmetic number, because the mean of its divisors is an integer number (1354822040).

Almost surely, 2^21010162824 is an apocalyptic number.

21010162824 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

21010162824 is an abundant number, since it is smaller than the sum of its proper divisors (44021295096).

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

21010162824 is a wasteful number, since it uses less digits than its factorization.

21010162824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41686850 (or 41686843 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

Adding to 21010162824 its reverse (42826101012), we get a palindrome (63836263836).

The spelling of 21010162824 in words is "twenty-one billion, ten million, one hundred sixty-two thousand, eight hundred twenty-four".