1660053630 has 64 divisors (see below), whose sum is σ = 4095360000. Its totient is φ = 430445184.

The previous prime is 1660053613. The next prime is 1660053667. The reversal of 1660053630 is 363500661.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 217621 + ... + 225119.

It is an arithmetic number, because the mean of its divisors is an integer number (63990000).

Almost surely, 2^1660053630 is an apocalyptic number.

1660053630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1660053630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2047680000).

1660053630 is an abundant number, since it is smaller than the sum of its proper divisors (2435306370).

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

1660053630 is a wasteful number, since it uses less digits than its factorization.

1660053630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7713.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 1660053630 is about 40743.7557179011. The cubic root of 1660053630 is about 1184.0608985104.

The spelling of 1660053630 in words is "one billion, six hundred sixty million, fifty-three thousand, six hundred thirty".