1672166851 has 8 divisors (see below), whose sum is σ = 1694750400. Its totient is φ = 1649618880.

The previous prime is 1672166827. The next prime is 1672166857. The reversal of 1672166851 is 1586612761.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1672166851 - 2²¹ = 1670069699 is a prime.

It is a super-2 number, since 2×1672166851² = 5592283955166512402, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1672166798 and 1672166807.

It is not an unprimeable number, because it can be changed into a prime (1672166857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93621 + ... + 110041.

It is an arithmetic number, because the mean of its divisors is an integer number (211843800).

Almost surely, 2^1672166851 is an apocalyptic number.

1672166851 is a deficient number, since it is larger than the sum of its proper divisors (22583549).

1672166851 is a wasteful number, since it uses less digits than its factorization.

1672166851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17789.

The product of its digits is 120960, while the sum is 43.

The square root of 1672166851 is about 40892.1367869178. The cubic root of 1672166851 is about 1186.9339073334.

The spelling of 1672166851 in words is "one billion, six hundred seventy-two million, one hundred sixty-six thousand, eight hundred fifty-one".