32023311661 has 4 divisors (see below), whose sum is σ = 34934521824. Its totient is φ = 29112101500.

The previous prime is 32023311641. The next prime is 32023311673. The reversal of 32023311661 is 16611332023.

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 a cyclic number.

It is not a de Polignac number, because 32023311661 - 2⁵ = 32023311629 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 (32023311641) 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, 1455605065 + ... + 1455605086.

It is an arithmetic number, because the mean of its divisors is an integer number (8733630456).

Almost surely, 2^32023311661 is an apocalyptic number.

It is an amenable number.

32023311661 is a deficient number, since it is larger than the sum of its proper divisors (2911210163).

32023311661 is a wasteful number, since it uses less digits than its factorization.

32023311661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2911210162.

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 32023311661 its reverse (16611332023), we get a palindrome (48634643684).

The spelling of 32023311661 in words is "thirty-two billion, twenty-three million, three hundred eleven thousand, six hundred sixty-one".