2161350305236 has 12 divisors (see below), whose sum is σ = 3782407691412. Its totient is φ = 1080662393408.

The previous prime is 2161350305221. The next prime is 2161350305281. The reversal of 2161350305236 is 6325030531612.

It can be written as a sum of positive squares in 2 ways, for example, as 1947961741636 + 213388563600 = 1395694^2 + 461940^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2161350305195 and 2161350305204.

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, 2803465 + ... + 3490288.

It is an arithmetic number, because the mean of its divisors is an integer number (315200640951).

Almost surely, 2^{2161350305236} is an apocalyptic number.

It is an amenable number.

2161350305236 is a deficient number, since it is larger than the sum of its proper divisors (1621057386176).

2161350305236 is a wasteful number, since it uses less digits than its factorization.

2161350305236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6379610 (or 6379608 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 37.

Adding to 2161350305236 its reverse (6325030531612), we get a palindrome (8486380836848).

The spelling of 2161350305236 in words is "two trillion, one hundred sixty-one billion, three hundred fifty million, three hundred five thousand, two hundred thirty-six".