10666020531 has 8 divisors (see below), whose sum is σ = 14462400960. Its totient is φ = 6990160232.

The previous prime is 10666020517. The next prime is 10666020571. The reversal of 10666020531 is 13502066601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10666020531 - 2⁶ = 10666020467 is a prime.

It is a super-2 number, since 2×10666020531² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10666020571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30129825 + ... + 30130178.

It is an arithmetic number, because the mean of its divisors is an integer number (1807800120).

Almost surely, 2^10666020531 is an apocalyptic number.

10666020531 is a deficient number, since it is larger than the sum of its proper divisors (3796380429).

10666020531 is an equidigital number, since it uses as much as digits as its factorization.

10666020531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60260065.

The product of its (nonzero) digits is 6480, while the sum is 30.

The spelling of 10666020531 in words is "ten billion, six hundred sixty-six million, twenty thousand, five hundred thirty-one".