21411504152 has 16 divisors (see below), whose sum is σ = 40150453200. Its totient is φ = 10704716640.

The previous prime is 21411504089. The next prime is 21411504157. The reversal of 21411504152 is 25140511412.

It is a happy number.

It is a super-2 number, since 2×21411504152² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21411504157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37724 + ... + 210347.

It is an arithmetic number, because the mean of its divisors is an integer number (2509403325).

Almost surely, 2^21411504152 is an apocalyptic number.

It is an amenable number.

21411504152 is a deficient number, since it is larger than the sum of its proper divisors (18738949048).

21411504152 is a wasteful number, since it uses less digits than its factorization.

21411504152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258866 (or 258862 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 26.

The spelling of 21411504152 in words is "twenty-one billion, four hundred eleven million, five hundred four thousand, one hundred fifty-two".