1655564628 has 48 divisors (see below), whose sum is σ = 3897028800. Its totient is φ = 547008000.

The previous prime is 1655564623. The next prime is 1655564653. The reversal of 1655564628 is 8264655561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1655564623) 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, 1574703 + ... + 1575753.

It is an arithmetic number, because the mean of its divisors is an integer number (81188100).

Almost surely, 2^1655564628 is an apocalyptic number.

It is an amenable number.

1655564628 is an abundant number, since it is smaller than the sum of its proper divisors (2241464172).

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

1655564628 is a wasteful number, since it uses less digits than its factorization.

1655564628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2088 (or 2086 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 48.

The square root of 1655564628 is about 40688.6302055009. The cubic root of 1655564628 is about 1182.9926498906.

The spelling of 1655564628 in words is "one billion, six hundred fifty-five million, five hundred sixty-four thousand, six hundred twenty-eight".