1066718473 has 4 divisors (see below), whose sum is σ = 1095548740. Its totient is φ = 1037888208.

The previous prime is 1066718467. The next prime is 1066718479. The reversal of 1066718473 is 3748176601.

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

It is an interprime number because it is at equal distance from previous prime (1066718467) and next prime (1066718479).

It can be written as a sum of positive squares in 2 ways, for example, as 536015104 + 530703369 = 23152^2 + 23037^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1066718473 is a prime.

It is a super-2 number, since 2×1066718473² = 2275776601278903458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1066718479) 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, 14415078 + ... + 14415151.

It is an arithmetic number, because the mean of its divisors is an integer number (273887185).

Almost surely, 2^1066718473 is an apocalyptic number.

It is an amenable number.

1066718473 is a deficient number, since it is larger than the sum of its proper divisors (28830267).

1066718473 is an equidigital number, since it uses as much as digits as its factorization.

1066718473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28830266.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 1066718473 is about 32660.6563467423. The cubic root of 1066718473 is about 1021.7624511244.

The spelling of 1066718473 in words is "one billion, sixty-six million, seven hundred eighteen thousand, four hundred seventy-three".