32136405505521 has 4 divisors (see below), whose sum is σ = 42848540674032. Its totient is φ = 21424270337012.

The previous prime is 32136405505499. The next prime is 32136405505621. The reversal of 32136405505521 is 12550550463123.

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 32136405505521 - 2¹⁴ = 32136405489137 is a prime.

It is a super-2 number, since 2×32136405505521² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (32136405505621) 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, 5356067584251 + ... + 5356067584256.

It is an arithmetic number, because the mean of its divisors is an integer number (10712135168508).

Almost surely, 2^{32136405505521} is an apocalyptic number.

It is an amenable number.

32136405505521 is a deficient number, since it is larger than the sum of its proper divisors (10712135168511).

32136405505521 is a wasteful number, since it uses less digits than its factorization.

32136405505521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10712135168510.

The product of its (nonzero) digits is 540000, while the sum is 42.

Adding to 32136405505521 its reverse (12550550463123), we get a palindrome (44686955968644).

The spelling of 32136405505521 in words is "thirty-two trillion, one hundred thirty-six billion, four hundred five million, five hundred five thousand, five hundred twenty-one".