32656139957 has 8 divisors (see below), whose sum is σ = 37651580736. Its totient is φ = 27743268672.

The previous prime is 32656139917. The next prime is 32656139981. The reversal of 32656139957 is 75993165623.

It is a happy number.

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

It is not a de Polignac number, because 32656139957 - 2¹⁴ = 32656123573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32656139917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20641523 + ... + 20643104.

It is an arithmetic number, because the mean of its divisors is an integer number (4706447592).

Almost surely, 2^32656139957 is an apocalyptic number.

It is an amenable number.

32656139957 is a deficient number, since it is larger than the sum of its proper divisors (4995440779).

32656139957 is a wasteful number, since it uses less digits than its factorization.

32656139957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41284747.

The product of its digits is 9185400, while the sum is 56.

The spelling of 32656139957 in words is "thirty-two billion, six hundred fifty-six million, one hundred thirty-nine thousand, nine hundred fifty-seven".