1660611430 has 32 divisors (see below), whose sum is σ = 3087751104. Its totient is φ = 642531456.

The previous prime is 1660611409. The next prime is 1660611439. The reversal of 1660611430 is 341160661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1660611439) 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 15 ways as a sum of consecutive naturals, for example, 51039 + ... + 76981.

It is an arithmetic number, because the mean of its divisors is an integer number (96492222).

Almost surely, 2^1660611430 is an apocalyptic number.

1660611430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1660611430 is a deficient number, since it is larger than the sum of its proper divisors (1427139674).

1660611430 is a wasteful number, since it uses less digits than its factorization.

1660611430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26160.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 1660611430 is about 40750.6003636756. The cubic root of 1660611430 is about 1184.1935037058.

The spelling of 1660611430 in words is "one billion, six hundred sixty million, six hundred eleven thousand, four hundred thirty".