181401298332 has 12 divisors (see below), whose sum is σ = 423269696136. Its totient is φ = 60467099440.

The previous prime is 181401298327. The next prime is 181401298339. The reversal of 181401298332 is 233892104181.

181401298332 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (181401298339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7558387419 + ... + 7558387442.

It is an arithmetic number, because the mean of its divisors is an integer number (35272474678).

Almost surely, 2^181401298332 is an apocalyptic number.

181401298332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

181401298332 is an abundant number, since it is smaller than the sum of its proper divisors (241868397804).

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

181401298332 is a wasteful number, since it uses less digits than its factorization.

181401298332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15116774868 (or 15116774866 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The spelling of 181401298332 in words is "one hundred eighty-one billion, four hundred one million, two hundred ninety-eight thousand, three hundred thirty-two".