1660294967616 has 280 divisors, whose sum is σ = 5199868248960. Its totient is φ = 522360576000.

The previous prime is 1660294967543. The next prime is 1660294967623. The reversal of 1660294967616 is 6167694920661.

1660294967616 is a `hidden beast` number, since 1 + 6 + 6 + 0 + 2 + 9 + 4 + 9 + 6 + 7 + 616 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 26661316 + ... + 26723516.

It is an arithmetic number, because the mean of its divisors is an integer number (18570958032).

Almost surely, 2^{1660294967616} is an apocalyptic number.

1660294967616 is a gapful number since it is divisible by the number (16) 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 1660294967616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2599934124480).

1660294967616 is an abundant number, since it is smaller than the sum of its proper divisors (3539573281344).

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

1660294967616 is a wasteful number, since it uses less digits than its factorization.

1660294967616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62515 (or 62496 counting only the distinct ones).

The product of its (nonzero) digits is 35271936, while the sum is 63.

The spelling of 1660294967616 in words is "one trillion, six hundred sixty billion, two hundred ninety-four million, nine hundred sixty-seven thousand, six hundred sixteen".