21663411150232 has 16 divisors (see below), whose sum is σ = 40619966774400. Its totient is φ = 10831420010400.

The previous prime is 21663411150229. The next prime is 21663411150299. The reversal of 21663411150232 is 23205111436612.

It is a super-2 number, since 2×21663411150232² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21663411150191 and 21663411150200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35373007 + ... + 35980222.

It is an arithmetic number, because the mean of its divisors is an integer number (2538747923400).

Almost surely, 2^{21663411150232} is an apocalyptic number.

It is an amenable number.

21663411150232 is a deficient number, since it is larger than the sum of its proper divisors (18956555624168).

21663411150232 is a wasteful number, since it uses less digits than its factorization.

21663411150232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71391186 (or 71391182 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

Adding to 21663411150232 its reverse (23205111436612), we get a palindrome (44868522586844).

The spelling of 21663411150232 in words is "twenty-one trillion, six hundred sixty-three billion, four hundred eleven million, one hundred fifty thousand, two hundred thirty-two".