1662629280000 has 360 divisors, whose sum is σ = 5954871931008. Its totient is φ = 409261056000.

The previous prime is 1662629279999. The next prime is 1662629280023. The reversal of 1662629280000 is 829262661.

It is a super-2 number, since 2×1662629280000² (a number of 25 digits) contains 22 as substring.

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 39 ways as a sum of consecutive naturals, for example, 6106777 + ... + 6373223.

Almost surely, 2^{1662629280000} is an apocalyptic number.

1662629280000 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 1662629280000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2977435965504).

1662629280000 is an abundant number, since it is smaller than the sum of its proper divisors (4292242651008).

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

1662629280000 is an equidigital number, since it uses as much as digits as its factorization.

1662629280000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266499 (or 266470 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The spelling of 1662629280000 in words is "one trillion, six hundred sixty-two billion, six hundred twenty-nine million, two hundred eighty thousand".