2181503752032 has 96 divisors (see below), whose sum is σ = 6257677555584. Its totient is φ = 659935385600.

The previous prime is 2181503752013. The next prime is 2181503752081. The reversal of 2181503752032 is 2302573051812.

It is a tau number, because it is divible by the number of its divisors (96).

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, 1139769 + ... + 2379512.

It is an arithmetic number, because the mean of its divisors is an integer number (65184141204).

Almost surely, 2^{2181503752032} is an apocalyptic number.

2181503752032 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2181503752032 is an abundant number, since it is smaller than the sum of its proper divisors (4076173803552).

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

2181503752032 is a wasteful number, since it uses less digits than its factorization.

2181503752032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3519892 (or 3519884 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 39.

The spelling of 2181503752032 in words is "two trillion, one hundred eighty-one billion, five hundred three million, seven hundred fifty-two thousand, thirty-two".