1660012145 has 16 divisors (see below), whose sum is σ = 2173900032. Its totient is φ = 1206840960.

The previous prime is 1660012139. The next prime is 1660012253. The reversal of 1660012145 is 5412100661.

It is not a de Polignac number, because 1660012145 - 2⁸ = 1660011889 is a prime.

It is a Duffinian 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, 278264 + ... + 284166.

It is an arithmetic number, because the mean of its divisors is an integer number (135868752).

Almost surely, 2^1660012145 is an apocalyptic number.

It is an amenable number.

1660012145 is a deficient number, since it is larger than the sum of its proper divisors (513887887).

1660012145 is a wasteful number, since it uses less digits than its factorization.

1660012145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11032.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 1660012145 is about 40743.2466183047. The cubic root of 1660012145 is about 1184.0510351392.

The spelling of 1660012145 in words is "one billion, six hundred sixty million, twelve thousand, one hundred forty-five".