155908023000 has 128 divisors (see below), whose sum is σ = 486572037120. Its totient is φ = 41563593600.

The previous prime is 155908022957. The next prime is 155908023001. The reversal of 155908023000 is 320809551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155908023001) 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, 16936399 + ... + 16945601.

It is an arithmetic number, because the mean of its divisors is an integer number (3801344040).

Almost surely, 2^155908023000 is an apocalyptic number.

155908023000 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 155908023000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243286018560).

155908023000 is an abundant number, since it is smaller than the sum of its proper divisors (330664014120).

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

155908023000 is a wasteful number, since it uses less digits than its factorization.

155908023000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14874 (or 14860 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 33.

The spelling of 155908023000 in words is "one hundred fifty-five billion, nine hundred eight million, twenty-three thousand".