1660372473 has 16 divisors (see below), whose sum is σ = 2362521600. Its totient is φ = 1033595136.

The previous prime is 1660372471. The next prime is 1660372489. The reversal of 1660372473 is 3742730661.

It is not a de Polignac number, because 1660372473 - 2¹ = 1660372471 is a prime.

It is a super-2 number, since 2×1660372473² = 5513673498192271458, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1660372471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121698 + ... + 134651.

It is an arithmetic number, because the mean of its divisors is an integer number (147657600).

Almost surely, 2^1660372473 is an apocalyptic number.

It is an amenable number.

1660372473 is a deficient number, since it is larger than the sum of its proper divisors (702149127).

1660372473 is a wasteful number, since it uses less digits than its factorization.

1660372473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256496.

The product of its (nonzero) digits is 127008, while the sum is 39.

The square root of 1660372473 is about 40747.6683136594. The cubic root of 1660372473 is about 1184.1367003509.

The spelling of 1660372473 in words is "one billion, six hundred sixty million, three hundred seventy-two thousand, four hundred seventy-three".