232550143566 has 16 divisors (see below), whose sum is σ = 500877232464. Its totient is φ = 71553890304.

The previous prime is 232550143547. The next prime is 232550143589. The reversal of 232550143566 is 665341055232.

It is a happy number.

It is a super-2 number, since 2×232550143566² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1490705971 + ... + 1490706126.

It is an arithmetic number, because the mean of its divisors is an integer number (31304827029).

Almost surely, 2^232550143566 is an apocalyptic number.

232550143566 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

232550143566 is an abundant number, since it is smaller than the sum of its proper divisors (268327088898).

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

232550143566 is a wasteful number, since it uses less digits than its factorization.

232550143566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2981412115.

The product of its (nonzero) digits is 648000, while the sum is 42.

Adding to 232550143566 its reverse (665341055232), we get a palindrome (897891198798).

The spelling of 232550143566 in words is "two hundred thirty-two billion, five hundred fifty million, one hundred forty-three thousand, five hundred sixty-six".