1660070345 has 16 divisors (see below), whose sum is σ = 2062013760. Its totient is φ = 1281491904.

The previous prime is 1660070329. The next prime is 1660070351. The reversal of 1660070345 is 5430700661.

It is not a de Polignac number, because 1660070345 - 2⁴ = 1660070329 is a prime.

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, 410222 + ... + 414248.

It is an arithmetic number, because the mean of its divisors is an integer number (128875860).

Almost surely, 2^1660070345 is an apocalyptic number.

It is an amenable number.

1660070345 is a deficient number, since it is larger than the sum of its proper divisors (401943415).

1660070345 is a wasteful number, since it uses less digits than its factorization.

1660070345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6904.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 1660070345 is about 40743.9608408412. The cubic root of 1660070345 is about 1184.0648725811.

The spelling of 1660070345 in words is "one billion, six hundred sixty million, seventy thousand, three hundred forty-five".