1662336565136 has 160 divisors (see below), whose sum is σ = 3711800429568. Its totient is φ = 715256340480.

The previous prime is 1662336565063. The next prime is 1662336565139. The reversal of 1662336565136 is 6315656332661.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1662336565139) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54173030 + ... + 54203706.

Almost surely, 2^{1662336565136} is an apocalyptic number.

1662336565136 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 1662336565136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1855900214784).

1662336565136 is an abundant number, since it is smaller than the sum of its proper divisors (2049463864432).

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

1662336565136 is a wasteful number, since it uses less digits than its factorization.

1662336565136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31009 (or 31003 counting only the distinct ones).

The product of its digits is 10497600, while the sum is 53.

The spelling of 1662336565136 in words is "one trillion, six hundred sixty-two billion, three hundred thirty-six million, five hundred sixty-five thousand, one hundred thirty-six".