1670665070 has 16 divisors (see below), whose sum is σ = 3088473408. Its totient is φ = 650204640.

The previous prime is 1670665069. The next prime is 1670665097. The reversal of 1670665070 is 705660761.

It is a super-2 number, since 2×1670665070² = 5582243552236209800, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2257286 + ... + 2258025.

It is an arithmetic number, because the mean of its divisors is an integer number (193029588).

Almost surely, 2^1670665070 is an apocalyptic number.

1670665070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1670665070 is a deficient number, since it is larger than the sum of its proper divisors (1417808338).

1670665070 is a wasteful number, since it uses less digits than its factorization.

1670665070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4515355.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 1670665070 is about 40873.7699509111. The cubic root of 1670665070 is about 1186.5784705770.

The spelling of 1670665070 in words is "one billion, six hundred seventy million, six hundred sixty-five thousand, seventy".