161106115160250 has 144 divisors (see below), whose sum is σ = 471718706302584. Its totient is φ = 39656889792000.

The previous prime is 161106115160209. The next prime is 161106115160257. The reversal of 161106115160250 is 52061511601161.

161106115160250 is a `hidden beast` number, since 1 + 6 + 1 + 1 + 0 + 611 + 5 + 16 + 0 + 25 + 0 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 67399978643001 + 93706136517249 = 8209749^2 + 9680193^2 .

It is a super-3 number, since 3×161106115160250³ (a number of 44 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (161106115160257) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 211462111 + ... + 212222610.

Almost surely, 2^{161106115160250} is an apocalyptic number.

161106115160250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161106115160250 is an abundant number, since it is smaller than the sum of its proper divisors (310612591142334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161106115160250 is a wasteful number, since it uses less digits than its factorization.

161106115160250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423684770 (or 423684744 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 36.

The spelling of 161106115160250 in words is "one hundred sixty-one trillion, one hundred six billion, one hundred fifteen million, one hundred sixty thousand, two hundred fifty".