165476361897 has 96 divisors (see below), whose sum is σ = 316183855104. Its totient is φ = 80737574400.

The previous prime is 165476361889. The next prime is 165476361901. The reversal of 165476361897 is 798163674561.

165476361897 is a `hidden beast` number, since 1 + 6 + 5 + 4 + 7 + 6 + 3 + 618 + 9 + 7 = 666.

It is not a de Polignac number, because 165476361897 - 2³ = 165476361889 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (165476361887) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5770168 + ... + 5798774.

It is an arithmetic number, because the mean of its divisors is an integer number (3293581824).

Almost surely, 2^165476361897 is an apocalyptic number.

165476361897 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

165476361897 is a deficient number, since it is larger than the sum of its proper divisors (150707493207).

165476361897 is a wasteful number, since it uses less digits than its factorization.

165476361897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29139 (or 29136 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 63.

The spelling of 165476361897 in words is "one hundred sixty-five billion, four hundred seventy-six million, three hundred sixty-one thousand, eight hundred ninety-seven".