1660422423 has 16 divisors (see below), whose sum is σ = 2430550656. Its totient is φ = 999903840.

The previous prime is 1660422391. The next prime is 1660422433. The reversal of 1660422423 is 3242240661.

It is not a de Polignac number, because 1660422423 - 2⁵ = 1660422391 is a prime.

It is a super-3 number, since 3×1660422423³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1660422433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155061 + ... + 165422.

It is an arithmetic number, because the mean of its divisors is an integer number (151909416).

Almost surely, 2^1660422423 is an apocalyptic number.

1660422423 is a deficient number, since it is larger than the sum of its proper divisors (770128233).

1660422423 is a wasteful number, since it uses less digits than its factorization.

1660422423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320654.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 1660422423 is about 40748.2812275561. The cubic root of 1660422423 is about 1184.1485746012.

The spelling of 1660422423 in words is "one billion, six hundred sixty million, four hundred twenty-two thousand, four hundred twenty-three".