1020604654564 has 48 divisors (see below), whose sum is σ = 1978072568640. Its totient is φ = 456856709760.

The previous prime is 1020604654561. The next prime is 1020604654577. The reversal of 1020604654564 is 4654564060201.

1020604654564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 1020604654564.

It is not an unprimeable number, because it can be changed into a prime (1020604654561) 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, 10674282 + ... + 10769470.

It is an arithmetic number, because the mean of its divisors is an integer number (41209845180).

Almost surely, 2^{1020604654564} is an apocalyptic number.

It is an amenable number.

1020604654564 is a deficient number, since it is larger than the sum of its proper divisors (957467914076).

1020604654564 is a wasteful number, since it uses less digits than its factorization.

1020604654564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98908 (or 98906 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 43.

The spelling of 1020604654564 in words is "one trillion, twenty billion, six hundred four million, six hundred fifty-four thousand, five hundred sixty-four".