1662376603680 has 768 divisors, whose sum is σ = 6656855063040. Its totient is φ = 383830327296.

The previous prime is 1662376603621. The next prime is 1662376603709. The reversal of 1662376603680 is 863066732661.

1662376603680 is a `hidden beast` number, since 1 + 6 + 6 + 23 + 7 + 6 + 603 + 6 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 127 ways as a sum of consecutive naturals, for example, 298824579 + ... + 298830141.

It is an arithmetic number, because the mean of its divisors is an integer number (8667780030).

Almost surely, 2^{1662376603680} is an apocalyptic number.

1662376603680 is a gapful number since it is divisible by the number (10) 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 1662376603680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3328427531520).

1662376603680 is an abundant number, since it is smaller than the sum of its proper divisors (4994478459360).

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

1662376603680 is a wasteful number, since it uses less digits than its factorization.

1662376603680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5930 (or 5916 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 54.

The spelling of 1662376603680 in words is "one trillion, six hundred sixty-two billion, three hundred seventy-six million, six hundred three thousand, six hundred eighty".