2235541656545 has 16 divisors (see below), whose sum is σ = 2841028801488. Its totient is φ = 1682890106880.

The previous prime is 2235541656533. The next prime is 2235541656547. The reversal of 2235541656545 is 5456561455322.

It can be written as a sum of positive squares in 8 ways, for example, as 3816397729 + 2231725258816 = 61777^2 + 1493896^2 .

It is not a de Polignac number, because 2235541656545 - 2¹⁴ = 2235541640161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2235541656547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2243966 + ... + 3083255.

It is an arithmetic number, because the mean of its divisors is an integer number (177564300093).

Almost surely, 2^{2235541656545} is an apocalyptic number.

It is an amenable number.

2235541656545 is a deficient number, since it is larger than the sum of its proper divisors (605487144943).

2235541656545 is a wasteful number, since it uses less digits than its factorization.

2235541656545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5332180.

The product of its digits is 21600000, while the sum is 53.

The spelling of 2235541656545 in words is "two trillion, two hundred thirty-five billion, five hundred forty-one million, six hundred fifty-six thousand, five hundred forty-five".