181370880000 has 760 divisors, whose sum is σ = 687906486960. Its totient is φ = 47185920000.

The previous prime is 181370879993. The next prime is 181370880023. The reversal of 181370880000 is 88073181.

It is a super-2 number, since 2×181370880000² (a number of 23 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4423679980 + ... + 4423680020.

Almost surely, 2^181370880000 is an apocalyptic number.

181370880000 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 181370880000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (343953243480).

181370880000 is an abundant number, since it is smaller than the sum of its proper divisors (506535606960).

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

181370880000 is an frugal number, since it uses more digits than its factorization.

181370880000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106 (or 51 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 36.

The spelling of 181370880000 in words is "one hundred eighty-one billion, three hundred seventy million, eight hundred eighty thousand".