155473134044844 has 288 divisors, whose sum is σ = 489296399155200. Its totient is φ = 37885798016640.

The previous prime is 155473134044783. The next prime is 155473134044867. The reversal of 155473134044844 is 448440431374551.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6516517 + ... + 18799235.

It is an arithmetic number, because the mean of its divisors is an integer number (1698945830400).

Almost surely, 2^{155473134044844} is an apocalyptic number.

155473134044844 is a gapful number since it is divisible by the number (14) 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 155473134044844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (244648199577600).

155473134044844 is an abundant number, since it is smaller than the sum of its proper divisors (333823265110356).

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

155473134044844 is a wasteful number, since it uses less digits than its factorization.

155473134044844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12282873 (or 12282864 counting only the distinct ones).

The product of its (nonzero) digits is 51609600, while the sum is 57.

The spelling of 155473134044844 in words is "one hundred fifty-five trillion, four hundred seventy-three billion, one hundred thirty-four million, forty-four thousand, eight hundred forty-four".