1655475198 has 64 divisors (see below), whose sum is σ = 3789156672. Its totient is φ = 477665280.

The previous prime is 1655475197. The next prime is 1655475203. The reversal of 1655475198 is 8915745561.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1655475198.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1655475191) 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, 386388 + ... + 390648.

It is an arithmetic number, because the mean of its divisors is an integer number (59205573).

Almost surely, 2^1655475198 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1655475198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1894578336).

1655475198 is an abundant number, since it is smaller than the sum of its proper divisors (2133681474).

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

1655475198 is a wasteful number, since it uses less digits than its factorization.

1655475198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4589.

The product of its digits is 1512000, while the sum is 51.

The square root of 1655475198 is about 40687.5312350111. The cubic root of 1655475198 is about 1182.9713486105.

The spelling of 1655475198 in words is "one billion, six hundred fifty-five million, four hundred seventy-five thousand, one hundred ninety-eight".