1066998242523 has 4 divisors (see below), whose sum is σ = 1422664323368. Its totient is φ = 711332161680.

The previous prime is 1066998242507. The next prime is 1066998242537. The reversal of 1066998242523 is 3252428996601.

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

It is not a de Polignac number, because 1066998242523 - 2⁴ = 1066998242507 is a prime.

It is a super-2 number, since 2×1066998242523² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1066998242423) 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, 177833040418 + ... + 177833040423.

It is an arithmetic number, because the mean of its divisors is an integer number (355666080842).

Almost surely, 2^{1066998242523} is an apocalyptic number.

1066998242523 is a deficient number, since it is larger than the sum of its proper divisors (355666080845).

1066998242523 is an equidigital number, since it uses as much as digits as its factorization.

1066998242523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355666080844.

The product of its (nonzero) digits is 11197440, while the sum is 57.

The spelling of 1066998242523 in words is "one trillion, sixty-six billion, nine hundred ninety-eight million, two hundred forty-two thousand, five hundred twenty-three".