1006653321 has 12 divisors (see below), whose sum is σ = 1459851120. Its totient is φ = 668427000.

The previous prime is 1006653311. The next prime is 1006653341. The reversal of 1006653321 is 1233566001.

1006653321 is a `hidden beast` number, since 1 + 0 + 0 + 6 + 653 + 3 + 2 + 1 = 666.

It is not a de Polignac number, because 1006653321 - 2⁶ = 1006653257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1006653311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 220551 + ... + 225068.

It is an arithmetic number, because the mean of its divisors is an integer number (121654260).

Almost surely, 2^1006653321 is an apocalyptic number.

It is an amenable number.

1006653321 is a deficient number, since it is larger than the sum of its proper divisors (453197799).

1006653321 is a wasteful number, since it uses less digits than its factorization.

1006653321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445876 (or 445873 counting only the distinct ones).

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

The square root of 1006653321 is about 31727.8004437749. The cubic root of 1006653321 is about 1002.2128732467.

The spelling of 1006653321 in words is "one billion, six million, six hundred fifty-three thousand, three hundred twenty-one".