165551003645346 has 48 divisors (see below), whose sum is σ = 391377668580288. Its totient is φ = 50157317426400.

The previous prime is 165551003645333. The next prime is 165551003645351. The reversal of 165551003645346 is 643546300155561.

165551003645346 is a `hidden beast` number, since 1 + 6 + 5 + 5 + 510 + 0 + 36 + 4 + 53 + 46 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 165551003645292 and 165551003645301.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79413190 + ... + 81471201.

It is an arithmetic number, because the mean of its divisors is an integer number (8153701428756).

Almost surely, 2^{165551003645346} is an apocalyptic number.

165551003645346 is an abundant number, since it is smaller than the sum of its proper divisors (225826664934942).

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

165551003645346 is a wasteful number, since it uses less digits than its factorization.

165551003645346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160889607 (or 160889604 counting only the distinct ones).

The product of its (nonzero) digits is 19440000, while the sum is 54.

The spelling of 165551003645346 in words is "one hundred sixty-five trillion, five hundred fifty-one billion, three million, six hundred forty-five thousand, three hundred forty-six".