155004544000 has 352 divisors, whose sum is σ = 414712636416. Its totient is φ = 57662668800.

The previous prime is 155004543983. The next prime is 155004544007. The reversal of 155004544000 is 445400551.

It is a self number, because there is not a number n which added to its sum of digits gives 155004544000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155004544007) 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, 108927289 + ... + 108928711.

Almost surely, 2^155004544000 is an apocalyptic number.

155004544000 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 155004544000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207356318208).

155004544000 is an abundant number, since it is smaller than the sum of its proper divisors (259708092416).

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

155004544000 is a wasteful number, since it uses less digits than its factorization.

155004544000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1518 (or 1490 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 28.

Adding to 155004544000 its reverse (445400551), we get a palindrome (155449944551).

The spelling of 155004544000 in words is "one hundred fifty-five billion, four million, five hundred forty-four thousand".