36556133401 has 4 divisors (see below), whose sum is σ = 36591318400. Its totient is φ = 36520948404.

The previous prime is 36556133389. The next prime is 36556133443. The reversal of 36556133401 is 10433165563.

It is a happy number.

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 36556133401 - 2³³ = 27966198809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36556133701) 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, 17590941 + ... + 17593018.

It is an arithmetic number, because the mean of its divisors is an integer number (9147829600).

Almost surely, 2^36556133401 is an apocalyptic number.

It is an amenable number.

36556133401 is a deficient number, since it is larger than the sum of its proper divisors (35184999).

36556133401 is a wasteful number, since it uses less digits than its factorization.

36556133401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35184998.

The product of its (nonzero) digits is 97200, while the sum is 37.

Adding to 36556133401 its reverse (10433165563), we get a palindrome (46989298964).

The spelling of 36556133401 in words is "thirty-six billion, five hundred fifty-six million, one hundred thirty-three thousand, four hundred one".