10660021533 has 24 divisors (see below), whose sum is σ = 17860152128. Its totient is φ = 6000521472.

The previous prime is 10660021457. The next prime is 10660021549. The reversal of 10660021533 is 33512006601.

10660021533 is a `hidden beast` number, since 1 + 0 + 6 + 600 + 2 + 1 + 53 + 3 = 666.

10660021533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10660021533 - 2¹⁴ = 10660005149 is a prime.

It is a super-2 number, since 2×10660021533² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10660021497 and 10660021506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10660421533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1258516 + ... + 1266957.

Almost surely, 2^10660021533 is an apocalyptic number.

It is an amenable number.

10660021533 is a deficient number, since it is larger than the sum of its proper divisors (7200130595).

10660021533 is a wasteful number, since it uses less digits than its factorization.

10660021533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2525553 (or 2525550 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The spelling of 10660021533 in words is "ten billion, six hundred sixty million, twenty-one thousand, five hundred thirty-three".