165078225227853 has 192 divisors, whose sum is σ = 285374398566400. Its totient is φ = 91866451646592.

The previous prime is 165078225227837. The next prime is 165078225227869. The reversal of 165078225227853 is 358722522870561.

165078225227853 is a `hidden beast` number, since 1 + 6 + 5 + 0 + 7 + 8 + 22 + 522 + 7 + 85 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (165078225227837) and next prime (165078225227869).

It is not a de Polignac number, because 165078225227853 - 2⁴ = 165078225227837 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165078225227803) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 95808603450 + ... + 95808605172.

Almost surely, 2^{165078225227853} is an apocalyptic number.

It is an amenable number.

165078225227853 is a deficient number, since it is larger than the sum of its proper divisors (120296173338547).

165078225227853 is a wasteful number, since it uses less digits than its factorization.

165078225227853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3493 (or 3476 counting only the distinct ones).

The product of its (nonzero) digits is 112896000, while the sum is 63.

The spelling of 165078225227853 in words is "one hundred sixty-five trillion, seventy-eight billion, two hundred twenty-five million, two hundred twenty-seven thousand, eight hundred fifty-three".