1057045054646 has 24 divisors (see below), whose sum is σ = 1849573524240. Its totient is φ = 451757401872.

The previous prime is 1057045054643. The next prime is 1057045054661. The reversal of 1057045054646 is 6464505407501.

It is a super-2 number, since 2×1057045054646² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1057045054646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057045054643) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14987345 + ... + 15057708.

It is an arithmetic number, because the mean of its divisors is an integer number (77065563510).

Almost surely, 2^{1057045054646} is an apocalyptic number.

1057045054646 is a deficient number, since it is larger than the sum of its proper divisors (792528469594).

1057045054646 is a wasteful number, since it uses less digits than its factorization.

1057045054646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30045428 (or 30045421 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 47.

The spelling of 1057045054646 in words is "one trillion, fifty-seven billion, forty-five million, fifty-four thousand, six hundred forty-six".