1145644721058 has 48 divisors (see below), whose sum is σ = 2521307587680. Its totient is φ = 346052849472.

The previous prime is 1145644721057. The next prime is 1145644721129. The reversal of 1145644721058 is 8501274465411.

It is a junction number, because it is equal to n+sod(n) for n = 1145644720998 and 1145644721016.

It is not an unprimeable number, because it can be changed into a prime (1145644721057) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9438291 + ... + 9558902.

It is an arithmetic number, because the mean of its divisors is an integer number (52527241410).

Almost surely, 2^{1145644721058} is an apocalyptic number.

1145644721058 is an abundant number, since it is smaller than the sum of its proper divisors (1375662866622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1145644721058 is a wasteful number, since it uses less digits than its factorization.

1145644721058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18997263 (or 18997240 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 48.

The spelling of 1145644721058 in words is "one trillion, one hundred forty-five billion, six hundred forty-four million, seven hundred twenty-one thousand, fifty-eight".