1050000066601 has 4 divisors (see below), whose sum is σ = 1050126322372. Its totient is φ = 1049873810832.

The previous prime is 1050000066593. The next prime is 1050000066611. The reversal of 1050000066601 is 1066600000501.

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

It can be written as a sum of positive squares in 2 ways, for example, as 582205624576 + 467794442025 = 763024^2 + 683955^2 .

It is a cyclic number.

It is not a de Polignac number, because 1050000066601 - 2³ = 1050000066593 is a prime.

It is a super-2 number, since 2×1050000066601² (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 (1050000066611) 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, 63115410 + ... + 63132043.

It is an arithmetic number, because the mean of its divisors is an integer number (262531580593).

Almost surely, 2^{1050000066601} is an apocalyptic number.

It is an amenable number.

1050000066601 is a deficient number, since it is larger than the sum of its proper divisors (126255771).

1050000066601 is an equidigital number, since it uses as much as digits as its factorization.

1050000066601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126255770.

The product of its (nonzero) digits is 1080, while the sum is 25.

The spelling of 1050000066601 in words is "one trillion, fifty billion, sixty-six thousand, six hundred one".