210025130162165 has 32 divisors (see below), whose sum is σ = 266859467239680. Its totient is φ = 158363449288704.

The previous prime is 210025130162137. The next prime is 210025130162173. The reversal of 210025130162165 is 561261031520012.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210025130162165 is a prime.

It is a super-2 number, since 2×210025130162165² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38554439 + ... + 43663428.

It is an arithmetic number, because the mean of its divisors is an integer number (8339358351240).

Almost surely, 2^{210025130162165} is an apocalyptic number.

It is an amenable number.

210025130162165 is a deficient number, since it is larger than the sum of its proper divisors (56834337077515).

210025130162165 is a wasteful number, since it uses less digits than its factorization.

210025130162165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82218221.

The product of its (nonzero) digits is 21600, while the sum is 35.

Adding to 210025130162165 its reverse (561261031520012), we get a palindrome (771286161682177).

The spelling of 210025130162165 in words is "two hundred ten trillion, twenty-five billion, one hundred thirty million, one hundred sixty-two thousand, one hundred sixty-five".