155559068898 has 8 divisors (see below), whose sum is σ = 311118137808. Its totient is φ = 51853022964.

The previous prime is 155559068891. The next prime is 155559068921. The reversal of 155559068898 is 898860955551.

It is a sphenic number, since it is the product of 3 distinct primes.

155559068898 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (155559068891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12963255736 + ... + 12963255747.

It is an arithmetic number, because the mean of its divisors is an integer number (38889767226).

Almost surely, 2^155559068898 is an apocalyptic number.

155559068898 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

155559068898 is a wasteful number, since it uses less digits than its factorization.

155559068898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25926511488.

The product of its (nonzero) digits is 155520000, while the sum is 69.

It can be divided in two parts, 15555 and 9068898, that added together give a triangular number (9084453 = T₄₂₆₂).

The spelling of 155559068898 in words is "one hundred fifty-five billion, five hundred fifty-nine million, sixty-eight thousand, eight hundred ninety-eight".