2663517533340 has 96 divisors (see below), whose sum is σ = 7515592983360. Its totient is φ = 704776493056.

The previous prime is 2663517533317. The next prime is 2663517533437. The reversal of 2663517533340 is 433357153662.

It is a self number, because there is not a number n which added to its sum of digits gives 2663517533340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18909814 + ... + 19050146.

It is an arithmetic number, because the mean of its divisors is an integer number (78287426910).

Almost surely, 2^{2663517533340} is an apocalyptic number.

2663517533340 is a gapful number since it is divisible by the number (20) 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 2663517533340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3757796491680).

2663517533340 is an abundant number, since it is smaller than the sum of its proper divisors (4852075450020).

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

2663517533340 is a wasteful number, since it uses less digits than its factorization.

2663517533340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142791 (or 142789 counting only the distinct ones).

The product of its (nonzero) digits is 4082400, while the sum is 48.

The spelling of 2663517533340 in words is "two trillion, six hundred sixty-three billion, five hundred seventeen million, five hundred thirty-three thousand, three hundred forty".