155044564044340 has 96 divisors (see below), whose sum is σ = 352116965531520. Its totient is φ = 57145668604416.

The previous prime is 155044564044257. The next prime is 155044564044361. The reversal of 155044564044340 is 43440465440551.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38033194 + ... + 41911966.

It is an arithmetic number, because the mean of its divisors is an integer number (3667885057620).

Almost surely, 2^{155044564044340} is an apocalyptic number.

155044564044340 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 155044564044340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176058482765760).

155044564044340 is an abundant number, since it is smaller than the sum of its proper divisors (197072401487180).

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

155044564044340 is a wasteful number, since it uses less digits than its factorization.

155044564044340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3881681 (or 3881679 counting only the distinct ones).

The product of its (nonzero) digits is 9216000, while the sum is 49.

The spelling of 155044564044340 in words is "one hundred fifty-five trillion, forty-four billion, five hundred sixty-four million, forty-four thousand, three hundred forty".