36561053317172 has 12 divisors (see below), whose sum is σ = 63982740800580. Its totient is φ = 18280270231296.

The previous prime is 36561053317133. The next prime is 36561053317183. The reversal of 36561053317172 is 27171335016563.

It can be written as a sum of positive squares in 2 ways, for example, as 251197430416 + 36309855886756 = 501196^2 + 6025766^2 .

It is a super-2 number, since 2×36561053317172² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 36561053317172.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63785843 + ... + 64356474.

It is an arithmetic number, because the mean of its divisors is an integer number (5331895066715).

Almost surely, 2^{36561053317172} is an apocalyptic number.

It is an amenable number.

36561053317172 is a deficient number, since it is larger than the sum of its proper divisors (27421687483408).

36561053317172 is a wasteful number, since it uses less digits than its factorization.

36561053317172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128213650 (or 128213648 counting only the distinct ones).

The product of its (nonzero) digits is 2381400, while the sum is 50.

The spelling of 36561053317172 in words is "thirty-six trillion, five hundred sixty-one billion, fifty-three million, three hundred seventeen thousand, one hundred seventy-two".