1655227200 has 672 divisors, whose sum is σ = 6531010560. Its totient is φ = 362700800.

The previous prime is 1655227193. The next prime is 1655227207. The reversal of 1655227200 is 27225561.

It is an interprime number because it is at equal distance from previous prime (1655227193) and next prime (1655227207).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1655227207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 35217577 + ... + 35217623.

Almost surely, 2^1655227200 is an apocalyptic number.

1655227200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1655227200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3265505280).

1655227200 is an abundant number, since it is smaller than the sum of its proper divisors (4875783360).

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

1655227200 is a wasteful number, since it uses less digits than its factorization.

1655227200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 1655227200 is about 40684.4835287361. The cubic root of 1655227200 is about 1182.9122740963.

The spelling of 1655227200 in words is "one billion, six hundred fifty-five million, two hundred twenty-seven thousand, two hundred".