281480161632 has 48 divisors (see below), whose sum is σ = 758855310192. Its totient is φ = 91290862080.

The previous prime is 281480161583. The next prime is 281480161709. The reversal of 281480161632 is 236161084182.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39619219 + ... + 39626322.

It is an arithmetic number, because the mean of its divisors is an integer number (15809485629).

Almost surely, 2^281480161632 is an apocalyptic number.

It is an amenable number.

281480161632 is an abundant number, since it is smaller than the sum of its proper divisors (477375148560).

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

281480161632 is a wasteful number, since it uses less digits than its factorization.

281480161632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79245591 (or 79245583 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The spelling of 281480161632 in words is "two hundred eighty-one billion, four hundred eighty million, one hundred sixty-one thousand, six hundred thirty-two".