1045109557636 has 9 divisors (see below), whose sum is σ = 1828945303941. Its totient is φ = 522553756512.

The previous prime is 1045109557631. The next prime is 1045109557643. The reversal of 1045109557636 is 6367559015401.

The square root of 1045109557636 is 1022306.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 17205568900 + 1027903988736 = 131170^2 + 1013856^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1045109557631) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1789036 + ... + 2300188.

Almost surely, 2^{1045109557636} is an apocalyptic number.

1045109557636 is the 1022306-th square number.

It is an amenable number.

1045109557636 is a deficient number, since it is larger than the sum of its proper divisors (783835746305).

1045109557636 is an frugal number, since it uses more digits than its factorization.

1045109557636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022310 (or 511155 counting only the distinct ones).

The product of its (nonzero) digits is 3402000, while the sum is 52.

The spelling of 1045109557636 in words is "one trillion, forty-five billion, one hundred nine million, five hundred fifty-seven thousand, six hundred thirty-six".