1057350226561 has 4 divisors (see below), whose sum is σ = 1057356139824. Its totient is φ = 1057344313300.

The previous prime is 1057350226549. The next prime is 1057350226577. The reversal of 1057350226561 is 1656220537501.

1057350226561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1057350226561 - 2⁵ = 1057350226529 is a prime.

It is a super-2 number, since 2×1057350226561² (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 (1057350226511) 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, 2679775 + ... + 3048916.

It is an arithmetic number, because the mean of its divisors is an integer number (264339034956).

Almost surely, 2^{1057350226561} is an apocalyptic number.

It is an amenable number.

1057350226561 is a deficient number, since it is larger than the sum of its proper divisors (5913263).

1057350226561 is an equidigital number, since it uses as much as digits as its factorization.

1057350226561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5913262.

The product of its (nonzero) digits is 378000, while the sum is 43.

The spelling of 1057350226561 in words is "one trillion, fifty-seven billion, three hundred fifty million, two hundred twenty-six thousand, five hundred sixty-one".