1660161475 has 24 divisors (see below), whose sum is σ = 2354665760. Its totient is φ = 1137438720.

The previous prime is 1660161431. The next prime is 1660161487. The reversal of 1660161475 is 5741610661.

It is not a de Polignac number, because 1660161475 - 2¹³ = 1660153283 is a prime.

It is a super-2 number, since 2×1660161475² = 5512272246148351250, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 251011 + ... + 257539.

Almost surely, 2^1660161475 is an apocalyptic number.

1660161475 is a deficient number, since it is larger than the sum of its proper divisors (694504285).

1660161475 is a wasteful number, since it uses less digits than its factorization.

1660161475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7999 (or 7994 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 1660161475 is about 40745.0791507392. The cubic root of 1660161475 is about 1184.0865387026.

The spelling of 1660161475 in words is "one billion, six hundred sixty million, one hundred sixty-one thousand, four hundred seventy-five".