1655602368 has 224 divisors, whose sum is σ = 5243535360. Its totient is φ = 451077120.

The previous prime is 1655602339. The next prime is 1655602369. The reversal of 1655602368 is 8632065561.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (224).

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

It is not an unprimeable number, because it can be changed into a prime (1655602369) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3291205 + ... + 3291707.

It is an arithmetic number, because the mean of its divisors is an integer number (23408640).

Almost surely, 2^1655602368 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 1655602368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2621767680).

1655602368 is an abundant number, since it is smaller than the sum of its proper divisors (3587932992).

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

1655602368 is a wasteful number, since it uses less digits than its factorization.

1655602368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635 (or 625 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

The square root of 1655602368 is about 40689.0939687774. The cubic root of 1655602368 is about 1183.0016389293.

The spelling of 1655602368 in words is "one billion, six hundred fifty-five million, six hundred two thousand, three hundred sixty-eight".