1655613504 has 84 divisors (see below), whose sum is σ = 4753037484. Its totient is φ = 550996992.

The previous prime is 1655613499. The next prime is 1655613569. The reversal of 1655613504 is 4053165561.

1655613504 is a `hidden beast` number, since 1 + 65 + 561 + 35 + 0 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 393943104 + 1261670400 = 19848^2 + 35520^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 434134 + ... + 437930.

Almost surely, 2^1655613504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1655613504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2376518742).

1655613504 is an abundant number, since it is smaller than the sum of its proper divisors (3097423980).

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

1655613504 is a wasteful number, since it uses less digits than its factorization.

1655613504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4572 (or 4559 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 1655613504 is about 40689.2308111127. The cubic root of 1655613504 is about 1183.0042913127.

The spelling of 1655613504 in words is "one billion, six hundred fifty-five million, six hundred thirteen thousand, five hundred four".