1001161645226 has 8 divisors (see below), whose sum is σ = 1501766451684. Its totient is φ = 500572828000.

The previous prime is 1001161645223. The next prime is 1001161645283. The reversal of 1001161645226 is 6225461611001.

1001161645226 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 682360254601 + 318801390625 = 826051^2 + 564625^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1001161645223) 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, 3839525 + ... + 4091976.

Almost surely, 2^{1001161645226} is an apocalyptic number.

1001161645226 is a deficient number, since it is larger than the sum of its proper divisors (500604806458).

1001161645226 is an equidigital number, since it uses as much as digits as its factorization.

1001161645226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7994616.

The product of its (nonzero) digits is 17280, while the sum is 35.

The spelling of 1001161645226 in words is "one trillion, one billion, one hundred sixty-one million, six hundred forty-five thousand, two hundred twenty-six".