1671660330 has 32 divisors (see below), whose sum is σ = 4013198784. Its totient is φ = 445641216.

The previous prime is 1671660313. The next prime is 1671660359. The reversal of 1671660330 is 330661761.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1671660291 and 1671660300.

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, 129217 + ... + 141563.

It is an arithmetic number, because the mean of its divisors is an integer number (125412462).

Almost surely, 2^1671660330 is an apocalyptic number.

1671660330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1671660330 is an abundant number, since it is smaller than the sum of its proper divisors (2341538454).

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

1671660330 is a wasteful number, since it uses less digits than its factorization.

1671660330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16870.

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 1671660330 is about 40885.9429388635. The cubic root of 1671660330 is about 1186.8140493452.

The spelling of 1671660330 in words is "one billion, six hundred seventy-one million, six hundred sixty thousand, three hundred thirty".