155003904000 has 1008 divisors, whose sum is σ = 618644360880. Its totient is φ = 37306368000.

The previous prime is 155003903921. The next prime is 155003904001. The reversal of 155003904000 is 409300551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155003904001) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1115135931 + ... + 1115136069.

It is an arithmetic number, because the mean of its divisors is an integer number (613734485).

Almost surely, 2^155003904000 is an apocalyptic number.

155003904000 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 155003904000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (309322180440).

155003904000 is an abundant number, since it is smaller than the sum of its proper divisors (463640456880).

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

155003904000 is a wasteful number, since it uses less digits than its factorization.

155003904000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208 (or 160 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The spelling of 155003904000 in words is "one hundred fifty-five billion, three million, nine hundred four thousand".