1020540118449 has 16 divisors (see below), whose sum is σ = 1387272484800. Its totient is φ = 667100181696.

The previous prime is 1020540118439. The next prime is 1020540118463. The reversal of 1020540118449 is 9448110450201.

It is not a de Polignac number, because 1020540118449 - 2²⁵ = 1020506564017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1020540118439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1781394 + ... + 2283515.

It is an arithmetic number, because the mean of its divisors is an integer number (86704530300).

Almost surely, 2^{1020540118449} is an apocalyptic number.

It is an amenable number.

1020540118449 is a deficient number, since it is larger than the sum of its proper divisors (366732366351).

1020540118449 is a wasteful number, since it uses less digits than its factorization.

1020540118449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4066544.

The product of its (nonzero) digits is 46080, while the sum is 39.

The spelling of 1020540118449 in words is "one trillion, twenty billion, five hundred forty million, one hundred eighteen thousand, four hundred forty-nine".