36604650644 has 12 divisors (see below), whose sum is σ = 64337870100. Its totient is φ = 18222402048.

The previous prime is 36604650629. The next prime is 36604650707. The reversal of 36604650644 is 44605640663.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 26279652100 + 10324998544 = 162110^2 + 101612^2 .

It is a super-2 number, since 2×36604650644² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 36604650595 and 36604650604.

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, 19979789 + ... + 19981620.

It is an arithmetic number, because the mean of its divisors is an integer number (5361489175).

Almost surely, 2^36604650644 is an apocalyptic number.

It is an amenable number.

36604650644 is a deficient number, since it is larger than the sum of its proper divisors (27733219456).

36604650644 is a wasteful number, since it uses less digits than its factorization.

36604650644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39961642 (or 39961640 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 44.

The spelling of 36604650644 in words is "thirty-six billion, six hundred four million, six hundred fifty thousand, six hundred forty-four".