1660142895 has 8 divisors (see below), whose sum is σ = 2656228656. Its totient is φ = 885409536.

The previous prime is 1660142881. The next prime is 1660142909. The reversal of 1660142895 is 5982410661.

It is an interprime number because it is at equal distance from previous prime (1660142881) and next prime (1660142909).

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

It is not a de Polignac number, because 1660142895 - 2⁹ = 1660142383 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55338082 + ... + 55338111.

It is an arithmetic number, because the mean of its divisors is an integer number (332028582).

Almost surely, 2^1660142895 is an apocalyptic number.

1660142895 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1660142895 is a deficient number, since it is larger than the sum of its proper divisors (996085761).

1660142895 is a wasteful number, since it uses less digits than its factorization.

1660142895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110676201.

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 1660142895 is about 40744.8511471081. The cubic root of 1660142895 is about 1184.0821213793.

The spelling of 1660142895 in words is "one billion, six hundred sixty million, one hundred forty-two thousand, eight hundred ninety-five".