423155056500 has 480 divisors, whose sum is σ = 1514245404672. Its totient is φ = 102025440000.

The previous prime is 423155056477. The next prime is 423155056537. The reversal of 423155056500 is 5650551324.

423155056500 is a `hidden beast` number, since 4 + 2 + 3 + 1 + 550 + 56 + 50 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 85088014 + ... + 85092986.

Almost surely, 2^423155056500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423155056500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (757122702336).

423155056500 is an abundant number, since it is smaller than the sum of its proper divisors (1091090348172).

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

423155056500 is a wasteful number, since it uses less digits than its factorization.

423155056500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5206 (or 5185 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The spelling of 423155056500 in words is "four hundred twenty-three billion, one hundred fifty-five million, fifty-six thousand, five hundred".