10066820461 has 4 divisors (see below), whose sum is σ = 10072272672. Its totient is φ = 10061368252.

The previous prime is 10066820447. The next prime is 10066820471. The reversal of 10066820461 is 16402866001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10066820461 - 2¹⁷ = 10066689389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10066820411) 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, 2723335 + ... + 2727028.

It is an arithmetic number, because the mean of its divisors is an integer number (2518068168).

Almost surely, 2^10066820461 is an apocalyptic number.

It is an amenable number.

10066820461 is a deficient number, since it is larger than the sum of its proper divisors (5452211).

10066820461 is an equidigital number, since it uses as much as digits as its factorization.

10066820461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5452210.

The product of its (nonzero) digits is 13824, while the sum is 34.

The spelling of 10066820461 in words is "ten billion, sixty-six million, eight hundred twenty thousand, four hundred sixty-one".