1006660455531 has 4 divisors (see below), whose sum is σ = 1342213940712. Its totient is φ = 671106970352.

The previous prime is 1006660455511. The next prime is 1006660455533. The reversal of 1006660455531 is 1355540666001.

1006660455531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1006660455531 - 2⁶ = 1006660455467 is a prime.

It is a super-2 number, since 2×1006660455531² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1006660455533) 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, 167776742586 + ... + 167776742591.

It is an arithmetic number, because the mean of its divisors is an integer number (335553485178).

Almost surely, 2^{1006660455531} is an apocalyptic number.

1006660455531 is a deficient number, since it is larger than the sum of its proper divisors (335553485181).

1006660455531 is an equidigital number, since it uses as much as digits as its factorization.

1006660455531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335553485180.

The product of its (nonzero) digits is 324000, while the sum is 42.

The spelling of 1006660455531 in words is "one trillion, six billion, six hundred sixty million, four hundred fifty-five thousand, five hundred thirty-one".