165547154147 has 24 divisors (see below), whose sum is σ = 189628963440. Its totient is φ = 144008202240.

The previous prime is 165547154137. The next prime is 165547154161. The reversal of 165547154147 is 741451745561.

It is a de Polignac number, because none of the positive numbers 2^k-165547154147 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 165547154095 and 165547154104.

It is not an unprimeable number, because it can be changed into a prime (165547154107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142538 + ... + 592799.

It is an arithmetic number, because the mean of its divisors is an integer number (7901206810).

Almost surely, 2^165547154147 is an apocalyptic number.

165547154147 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

165547154147 is a deficient number, since it is larger than the sum of its proper divisors (24081809293).

165547154147 is a wasteful number, since it uses less digits than its factorization.

165547154147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735431 (or 735414 counting only the distinct ones).

The product of its digits is 2352000, while the sum is 50.

The spelling of 165547154147 in words is "one hundred sixty-five billion, five hundred forty-seven million, one hundred fifty-four thousand, one hundred forty-seven".