1020604655 has 8 divisors (see below), whose sum is σ = 1399686432. Its totient is φ = 699843168.

The previous prime is 1020604631. The next prime is 1020604693. The reversal of 1020604655 is 5564060201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1020604655 - 2¹⁰ = 1020603631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14580032 + ... + 14580101.

It is an arithmetic number, because the mean of its divisors is an integer number (174960804).

Almost surely, 2^1020604655 is an apocalyptic number.

1020604655 is a deficient number, since it is larger than the sum of its proper divisors (379081777).

1020604655 is an equidigital number, since it uses as much as digits as its factorization.

1020604655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29160145.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 1020604655 is about 31946.9036840818. The cubic root of 1020604655 is about 1006.8215785873.

Adding to 1020604655 its reverse (5564060201), we get a palindrome (6584664856).

The spelling of 1020604655 in words is "one billion, twenty million, six hundred four thousand, six hundred fifty-five".