3315548618646 has 64 divisors (see below), whose sum is σ = 7331925171456. Its totient is φ = 991172304000.

The previous prime is 3315548618593. The next prime is 3315548618729. The reversal of 3315548618646 is 6468168455133.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3315548618646.

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, 948681 + ... + 2744283.

It is an arithmetic number, because the mean of its divisors is an integer number (114561330804).

Almost surely, 2^{3315548618646} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3315548618646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3665962585728).

3315548618646 is an abundant number, since it is smaller than the sum of its proper divisors (4016376552810).

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

3315548618646 is a wasteful number, since it uses less digits than its factorization.

3315548618646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1795997.

The product of its digits is 49766400, while the sum is 60.

The spelling of 3315548618646 in words is "three trillion, three hundred fifteen billion, five hundred forty-eight million, six hundred eighteen thousand, six hundred forty-six".