32963257661 has 4 divisors (see below), whose sum is σ = 32963621052. Its totient is φ = 32962894272.

The previous prime is 32963257603. The next prime is 32963257673. The reversal of 32963257661 is 16675236923.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 22558237636 + 10405020025 = 150194^2 + 102005^2 .

It is a cyclic number.

It is not a de Polignac number, because 32963257661 - 2¹⁰ = 32963256637 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 (32963557661) 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, 80261 + ... + 269013.

It is an arithmetic number, because the mean of its divisors is an integer number (8240905263).

Almost surely, 2^32963257661 is an apocalyptic number.

It is an amenable number.

32963257661 is a deficient number, since it is larger than the sum of its proper divisors (363391).

32963257661 is a wasteful number, since it uses less digits than its factorization.

32963257661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363390.

The product of its digits is 2449440, while the sum is 50.

The spelling of 32963257661 in words is "thirty-two billion, nine hundred sixty-three million, two hundred fifty-seven thousand, six hundred sixty-one".