155648598 has 64 divisors (see below), whose sum is σ = 370137600. Its totient is φ = 43601376.

The previous prime is 155648593. The next prime is 155648599. The reversal of 155648598 is 895846551.

It is a self number, because there is not a number n which added to its sum of digits gives 155648598.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155648593) 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 31 ways as a sum of consecutive naturals, for example, 108361 + ... + 109787.

It is an arithmetic number, because the mean of its divisors is an integer number (5783400).

Almost surely, 2^155648598 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155648598, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185068800).

155648598 is an abundant number, since it is smaller than the sum of its proper divisors (214489002).

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

155648598 is a wasteful number, since it uses less digits than its factorization.

155648598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506 (or 1492 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 51.

The square root of 155648598 is about 12475.9207275455. The cubic root of 155648598 is about 537.9167539786.

The spelling of 155648598 in words is "one hundred fifty-five million, six hundred forty-eight thousand, five hundred ninety-eight".