32320067551 has 4 divisors (see below), whose sum is σ = 32425344952. Its totient is φ = 32214790152.

The previous prime is 32320067537. The next prime is 32320067557. The reversal of 32320067551 is 15576002323.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15576002323 = 7 ⋅2225143189.

It is a cyclic number.

It is not a de Polignac number, because 32320067551 - 2²³ = 32311678943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32320067557) 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, 52638240 + ... + 52638853.

It is an arithmetic number, because the mean of its divisors is an integer number (8106336238).

Almost surely, 2^32320067551 is an apocalyptic number.

32320067551 is a deficient number, since it is larger than the sum of its proper divisors (105277401).

32320067551 is a wasteful number, since it uses less digits than its factorization.

32320067551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105277400.

The product of its (nonzero) digits is 37800, while the sum is 34.

Adding to 32320067551 its reverse (15576002323), we get a palindrome (47896069874).

The spelling of 32320067551 in words is "thirty-two billion, three hundred twenty million, sixty-seven thousand, five hundred fifty-one".