165106377 has 16 divisors (see below), whose sum is σ = 244800000. Its totient is φ = 109981872.

The previous prime is 165106373. The next prime is 165106411. The reversal of 165106377 is 773601561.

165106377 is a `hidden beast` number, since 1 + 6 + 5 + 10 + 637 + 7 = 666.

It is not a de Polignac number, because 165106377 - 2² = 165106373 is a prime.

It is a super-2 number, since 2×165106377² = 54520231452132258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (165106373) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63499 + ... + 66047.

It is an arithmetic number, because the mean of its divisors is an integer number (15300000).

Almost surely, 2^165106377 is an apocalyptic number.

It is an amenable number.

165106377 is a deficient number, since it is larger than the sum of its proper divisors (79693623).

165106377 is a wasteful number, since it uses less digits than its factorization.

165106377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4957 (or 4951 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 165106377 is about 12849.3726305995. The cubic root of 165106377 is about 548.5985000766.

The spelling of 165106377 in words is "one hundred sixty-five million, one hundred six thousand, three hundred seventy-seven".