2621966327016 has 128 divisors (see below), whose sum is σ = 6850948377600. Its totient is φ = 835276861440.

The previous prime is 2621966326981. The next prime is 2621966327023. The reversal of 2621966327016 is 6107236691262.

It is a self number, because there is not a number n which added to its sum of digits gives 2621966327016.

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, 23231650 + ... + 23344238.

It is an arithmetic number, because the mean of its divisors is an integer number (53523034200).

Almost surely, 2^{2621966327016} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2621966327016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3425474188800).

2621966327016 is an abundant number, since it is smaller than the sum of its proper divisors (4228982050584).

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

2621966327016 is a wasteful number, since it uses less digits than its factorization.

2621966327016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113019 (or 113015 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 51.

The spelling of 2621966327016 in words is "two trillion, six hundred twenty-one billion, nine hundred sixty-six million, three hundred twenty-seven thousand, sixteen".