1660536599052 has 192 divisors, whose sum is σ = 4173990912000. Its totient is φ = 512292688128.

The previous prime is 1660536599047. The next prime is 1660536599053. The reversal of 1660536599052 is 2509956350661.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a junction number, because it is equal to n+sod(n) for n = 1660536598983 and 1660536599001.

It is not an unprimeable number, because it can be changed into a prime (1660536599053) 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 63 ways as a sum of consecutive naturals, for example, 532392349 + ... + 532395467.

It is an arithmetic number, because the mean of its divisors is an integer number (21739536000).

Almost surely, 2^{1660536599052} is an apocalyptic number.

1660536599052 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 1660536599052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2086995456000).

1660536599052 is an abundant number, since it is smaller than the sum of its proper divisors (2513454312948).

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

1660536599052 is a wasteful number, since it uses less digits than its factorization.

1660536599052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3548 (or 3546 counting only the distinct ones).

The product of its (nonzero) digits is 13122000, while the sum is 57.

The spelling of 1660536599052 in words is "one trillion, six hundred sixty billion, five hundred thirty-six million, five hundred ninety-nine thousand, fifty-two".