1659052671 has 8 divisors (see below), whose sum is σ = 2259135744. Its totient is φ = 1082502360.

The previous prime is 1659052667. The next prime is 1659052711. The reversal of 1659052671 is 1762509561.

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

It is not a de Polignac number, because 1659052671 - 2² = 1659052667 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 not an unprimeable number, because it can be changed into a prime (1659050671) 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, 5883025 + ... + 5883306.

It is an arithmetic number, because the mean of its divisors is an integer number (282391968).

Almost surely, 2^1659052671 is an apocalyptic number.

1659052671 is a deficient number, since it is larger than the sum of its proper divisors (600083073).

1659052671 is a wasteful number, since it uses less digits than its factorization.

1659052671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11766381.

The product of its (nonzero) digits is 113400, while the sum is 42.

The square root of 1659052671 is about 40731.4702779067. The cubic root of 1659052671 is about 1183.8228671033.

The spelling of 1659052671 in words is "one billion, six hundred fifty-nine million, fifty-two thousand, six hundred seventy-one".