161095502025 has 48 divisors (see below), whose sum is σ = 296019803520. Its totient is φ = 85893969600.

The previous prime is 161095502011. The next prime is 161095502039. The reversal of 161095502025 is 520205590161.

161095502025 is a `hidden beast` number, since 1 + 61 + 0 + 9 + 550 + 20 + 25 = 666.

It is an interprime number because it is at equal distance from previous prime (161095502011) and next prime (161095502039).

It is not a de Polignac number, because 161095502025 - 2¹⁸ = 161095239881 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2576635 + ... + 2638415.

It is an arithmetic number, because the mean of its divisors is an integer number (6167079240).

Almost surely, 2^161095502025 is an apocalyptic number.

161095502025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

161095502025 is a deficient number, since it is larger than the sum of its proper divisors (134924301495).

161095502025 is a wasteful number, since it uses less digits than its factorization.

161095502025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65663 (or 65652 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The spelling of 161095502025 in words is "one hundred sixty-one billion, ninety-five million, five hundred two thousand, twenty-five".