36121155605 has 8 divisors (see below), whose sum is σ = 43346749752. Its totient is φ = 28896015808.

The previous prime is 36121155599. The next prime is 36121155617. The reversal of 36121155605 is 50655112163.

It can be written as a sum of positive squares in 4 ways, for example, as 12589288804 + 23531866801 = 112202^2 + 153401^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 36121155605 - 2¹⁴ = 36121139221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96719 + ... + 285651.

It is an arithmetic number, because the mean of its divisors is an integer number (5418343719).

Almost surely, 2^36121155605 is an apocalyptic number.

It is an amenable number.

36121155605 is a deficient number, since it is larger than the sum of its proper divisors (7225594147).

36121155605 is a wasteful number, since it uses less digits than its factorization.

36121155605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227175.

The product of its (nonzero) digits is 27000, while the sum is 35.

Adding to 36121155605 its reverse (50655112163), we get a palindrome (86776267768).

The spelling of 36121155605 in words is "thirty-six billion, one hundred twenty-one million, one hundred fifty-five thousand, six hundred five".