32156113477 has 4 divisors (see below), whose sum is σ = 32196460716. Its totient is φ = 32115766240.

The previous prime is 32156113463. The next prime is 32156113501. The reversal of 32156113477 is 77431165123.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19354096161 + 12802017316 = 139119^2 + 113146^2 .

It is a cyclic number.

It is not a de Polignac number, because 32156113477 - 2¹⁵ = 32156080709 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 (32156113277) 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, 20172424 + ... + 20174017.

It is an arithmetic number, because the mean of its divisors is an integer number (8049115179).

Almost surely, 2^32156113477 is an apocalyptic number.

It is an amenable number.

32156113477 is a deficient number, since it is larger than the sum of its proper divisors (40347239).

32156113477 is an equidigital number, since it uses as much as digits as its factorization.

32156113477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40347238.

The product of its digits is 105840, while the sum is 40.

The spelling of 32156113477 in words is "thirty-two billion, one hundred fifty-six million, one hundred thirteen thousand, four hundred seventy-seven".