155493459000 has 512 divisors, whose sum is σ = 589814784000. Its totient is φ = 37582272000.

The previous prime is 155493458987. The next prime is 155493459001. The reversal of 155493459000 is 954394551.

155493459000 is a `hidden beast` number, since 1 + 5 + 54 + 9 + 3 + 4 + 590 + 0 + 0 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155493459001) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 142262454 + ... + 142263546.

It is an arithmetic number, because the mean of its divisors is an integer number (1151982000).

Almost surely, 2^155493459000 is an apocalyptic number.

155493459000 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 155493459000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294907392000).

155493459000 is an abundant number, since it is smaller than the sum of its proper divisors (434321325000).

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

155493459000 is a wasteful number, since it uses less digits than its factorization.

155493459000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1613 (or 1593 counting only the distinct ones).

The product of its (nonzero) digits is 486000, while the sum is 45.

The spelling of 155493459000 in words is "one hundred fifty-five billion, four hundred ninety-three million, four hundred fifty-nine thousand".