1660142937 has 8 divisors (see below), whose sum is σ = 2215696000. Its totient is φ = 1105675920.

The previous prime is 1660142933. The next prime is 1660142971. The reversal of 1660142937 is 7392410661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1660142937 - 2² = 1660142933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1660142895 and 1660142904.

It is not an unprimeable number, because it can be changed into a prime (1660142933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267937 + ... + 274062.

It is an arithmetic number, because the mean of its divisors is an integer number (276962000).

Almost surely, 2^1660142937 is an apocalyptic number.

It is an amenable number.

1660142937 is a deficient number, since it is larger than the sum of its proper divisors (555553063).

1660142937 is a wasteful number, since it uses less digits than its factorization.

1660142937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543023.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 1660142937 is about 40744.8516625107. The cubic root of 1660142937 is about 1184.0821313647.

The spelling of 1660142937 in words is "one billion, six hundred sixty million, one hundred forty-two thousand, nine hundred thirty-seven".