36561200155 has 4 divisors (see below), whose sum is σ = 43873440192. Its totient is φ = 29248960120.

The previous prime is 36561200153. The next prime is 36561200183. The reversal of 36561200155 is 55100216563.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55100216563 = 7 ⋅7871459509.

It is not a de Polignac number, because 36561200155 - 2¹ = 36561200153 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 36561200155.

It is not an unprimeable number, because it can be changed into a prime (36561200153) 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, 3656120011 + ... + 3656120020.

It is an arithmetic number, because the mean of its divisors is an integer number (10968360048).

Almost surely, 2^36561200155 is an apocalyptic number.

36561200155 is a deficient number, since it is larger than the sum of its proper divisors (7312240037).

36561200155 is an equidigital number, since it uses as much as digits as its factorization.

36561200155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7312240036.

The product of its (nonzero) digits is 27000, while the sum is 34.

The spelling of 36561200155 in words is "thirty-six billion, five hundred sixty-one million, two hundred thousand, one hundred fifty-five".