655187064 has 64 divisors (see below), whose sum is σ = 1885497600. Its totient is φ = 185842944.

The previous prime is 655187063. The next prime is 655187129. The reversal of 655187064 is 460781556.

655187064 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655187063) 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, 9324 + ... + 37380.

It is an arithmetic number, because the mean of its divisors is an integer number (29460900).

Almost surely, 2^655187064 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 655187064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (942748800).

655187064 is an abundant number, since it is smaller than the sum of its proper divisors (1230310536).

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

655187064 is a wasteful number, since it uses less digits than its factorization.

655187064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28212 (or 28208 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 655187064 is about 25596.6221208971. The cubic root of 655187064 is about 868.5372275088.

The spelling of 655187064 in words is "six hundred fifty-five million, one hundred eighty-seven thousand, sixty-four".