1672672566 has 32 divisors (see below), whose sum is σ = 3496002048. Its totient is φ = 533000160.

The previous prime is 1672672511. The next prime is 1672672571. The reversal of 1672672566 is 6652762761.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 56845 + ... + 81096.

It is an arithmetic number, because the mean of its divisors is an integer number (109250064).

Almost surely, 2^1672672566 is an apocalyptic number.

1672672566 is an abundant number, since it is smaller than the sum of its proper divisors (1823329482).

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

1672672566 is a wasteful number, since it uses less digits than its factorization.

1672672566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138036.

The product of its digits is 1270080, while the sum is 48.

The square root of 1672672566 is about 40898.3198432405. The cubic root of 1672672566 is about 1187.0535504538.

The spelling of 1672672566 in words is "one billion, six hundred seventy-two million, six hundred seventy-two thousand, five hundred sixty-six".