32016221481 has 4 divisors (see below), whose sum is σ = 42688295312. Its totient is φ = 21344147652.

The previous prime is 32016221459. The next prime is 32016221519. The reversal of 32016221481 is 18412261023.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 32016221481 - 2⁵ = 32016221449 is a prime.

It is a super-2 number, since 2×32016221481² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32016721481) 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, 5336036911 + ... + 5336036916.

It is an arithmetic number, because the mean of its divisors is an integer number (10672073828).

Almost surely, 2^32016221481 is an apocalyptic number.

It is an amenable number.

32016221481 is a deficient number, since it is larger than the sum of its proper divisors (10672073831).

32016221481 is a wasteful number, since it uses less digits than its factorization.

32016221481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10672073830.

The product of its (nonzero) digits is 4608, while the sum is 30.

The spelling of 32016221481 in words is "thirty-two billion, sixteen million, two hundred twenty-one thousand, four hundred eighty-one".