158666632000 has 112 divisors (see below), whose sum is σ = 393156064080. Its totient is φ = 63431424000.

The previous prime is 158666631997. The next prime is 158666632013. The reversal of 158666632000 is 236666851.

It can be written as a sum of positive squares in 8 ways, for example, as 121516382464 + 37150249536 = 348592^2 + 192744^2 .

It is a super-2 number, since 2×158666632000² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18147630 + ... + 18156370.

Almost surely, 2^158666632000 is an apocalyptic number.

158666632000 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 158666632000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196578032040).

158666632000 is an abundant number, since it is smaller than the sum of its proper divisors (234489432080).

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

158666632000 is an equidigital number, since it uses as much as digits as its factorization.

158666632000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11037 (or 11017 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 158666632000 in words is "one hundred fifty-eight billion, six hundred sixty-six million, six hundred thirty-two thousand".