1660094431 has 4 divisors (see below), whose sum is σ = 1662436600. Its totient is φ = 1657752264.

The previous prime is 1660094411. The next prime is 1660094441. The reversal of 1660094431 is 1344900661.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1660094431 - 2¹¹ = 1660092383 is a prime.

It is a super-2 number, since 2×1660094431² = 5511827039674427522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1660094411) 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 3 ways as a sum of consecutive naturals, for example, 1170021 + ... + 1171438.

It is an arithmetic number, because the mean of its divisors is an integer number (415609150).

Almost surely, 2^1660094431 is an apocalyptic number.

1660094431 is a deficient number, since it is larger than the sum of its proper divisors (2342169).

1660094431 is an equidigital number, since it uses as much as digits as its factorization.

1660094431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2342168.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 1660094431 is about 40744.2564173160. The cubic root of 1660094431 is about 1184.0705990952.

The spelling of 1660094431 in words is "one billion, six hundred sixty million, ninety-four thousand, four hundred thirty-one".