1676642165 has 16 divisors (see below), whose sum is σ = 2195842176. Its totient is φ = 1218840000.

The previous prime is 1676642159. The next prime is 1676642243. The reversal of 1676642165 is 5612466761.

It is not a de Polignac number, because 1676642165 - 2²⁰ = 1675593589 is a prime.

It is a super-2 number, since 2×1676642165² = 5622257898911774450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154415 + ... + 164915.

It is an arithmetic number, because the mean of its divisors is an integer number (137240136).

Almost surely, 2^1676642165 is an apocalyptic number.

It is an amenable number.

1676642165 is a deficient number, since it is larger than the sum of its proper divisors (519200011).

1676642165 is a wasteful number, since it uses less digits than its factorization.

1676642165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13420.

The product of its digits is 362880, while the sum is 44.

The square root of 1676642165 is about 40946.8211830906. The cubic root of 1676642165 is about 1187.9918500293.

The spelling of 1676642165 in words is "one billion, six hundred seventy-six million, six hundred forty-two thousand, one hundred sixty-five".