1662239734848 has 672 divisors, whose sum is σ = 6359031963648. Its totient is φ = 417813811200.

The previous prime is 1662239734811. The next prime is 1662239734877. The reversal of 1662239734848 is 8484379322661.

1662239734848 is a `hidden beast` number, since 1 + 6 + 62 + 2 + 3 + 97 + 3 + 484 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

It is a super-2 number, since 2×1662239734848² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 37100236 + ... + 37145012.

It is an arithmetic number, because the mean of its divisors is an integer number (9462845184).

Almost surely, 2^{1662239734848} is an apocalyptic number.

1662239734848 is a gapful number since it is divisible by the number (18) 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 1662239734848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3179515981824).

1662239734848 is an abundant number, since it is smaller than the sum of its proper divisors (4696792228800).

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

1662239734848 is a wasteful number, since it uses less digits than its factorization.

1662239734848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44853 (or 44831 counting only the distinct ones).

The product of its digits is 83607552, while the sum is 63.

The spelling of 1662239734848 in words is "one trillion, six hundred sixty-two billion, two hundred thirty-nine million, seven hundred thirty-four thousand, eight hundred forty-eight".