1660051632 has 80 divisors (see below), whose sum is σ = 4563993600. Its totient is φ = 518132736.

The previous prime is 1660051577. The next prime is 1660051633. The reversal of 1660051632 is 2361500661.

It is a self number, because there is not a number n which added to its sum of digits gives 1660051632.

It is not an unprimeable number, because it can be changed into a prime (1660051633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157273 + ... + 167495.

It is an arithmetic number, because the mean of its divisors is an integer number (57049920).

Almost surely, 2^1660051632 is an apocalyptic number.

1660051632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1660051632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2281996800).

1660051632 is an abundant number, since it is smaller than the sum of its proper divisors (2903941968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1660051632 is a wasteful number, since it uses less digits than its factorization.

1660051632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10450 (or 10444 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 1660051632 is about 40743.7311987992. The cubic root of 1660051632 is about 1184.0604234747.

The spelling of 1660051632 in words is "one billion, six hundred sixty million, fifty-one thousand, six hundred thirty-two".