155632213000 has 256 divisors, whose sum is σ = 407077332480. Its totient is φ = 55216000000.

The previous prime is 155632212991. The next prime is 155632213001. The reversal of 155632213000 is 312236551.

It is a self number, because there is not a number n which added to its sum of digits gives 155632213000.

It is not an unprimeable number, because it can be changed into a prime (155632213001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 78880014 + ... + 78881986.

It is an arithmetic number, because the mean of its divisors is an integer number (1590145830).

Almost surely, 2^155632213000 is an apocalyptic number.

155632213000 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 155632213000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203538666240).

155632213000 is an abundant number, since it is smaller than the sum of its proper divisors (251445119480).

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

155632213000 is a wasteful number, since it uses less digits than its factorization.

155632213000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2177 (or 2163 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 155632213000 its reverse (312236551), we get a palindrome (155944449551).

The spelling of 155632213000 in words is "one hundred fifty-five billion, six hundred thirty-two million, two hundred thirteen thousand".