32665408381 has 8 divisors (see below), whose sum is σ = 35185181184. Its totient is φ = 30237263760.

The previous prime is 32665408379. The next prime is 32665408463. The reversal of 32665408381 is 18380456623.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 32665408381 - 2¹ = 32665408379 is a prime.

It is a super-2 number, since 2×32665408381² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32665408481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22906306 + ... + 22907731.

It is an arithmetic number, because the mean of its divisors is an integer number (4398147648).

Almost surely, 2^32665408381 is an apocalyptic number.

32665408381 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

32665408381 is a deficient number, since it is larger than the sum of its proper divisors (2519772803).

32665408381 is a wasteful number, since it uses less digits than its factorization.

32665408381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45814091.

The product of its (nonzero) digits is 829440, while the sum is 46.

The spelling of 32665408381 in words is "thirty-two billion, six hundred sixty-five million, four hundred eight thousand, three hundred eighty-one".