2621016643334 has 16 divisors (see below), whose sum is σ = 4184946745200. Its totient is φ = 1227584375424.

The previous prime is 2621016643261. The next prime is 2621016643339. The reversal of 2621016643334 is 4333466101262.

It is a junction number, because it is equal to n+sod(n) for n = 2621016643291 and 2621016643300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2621016643339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 387491687 + ... + 387498450.

It is an arithmetic number, because the mean of its divisors is an integer number (261559171575).

Almost surely, 2^{2621016643334} is an apocalyptic number.

2621016643334 is a deficient number, since it is larger than the sum of its proper divisors (1563930101866).

2621016643334 is a wasteful number, since it uses less digits than its factorization.

2621016643334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774990247.

The product of its (nonzero) digits is 373248, while the sum is 41.

The spelling of 2621016643334 in words is "two trillion, six hundred twenty-one billion, sixteen million, six hundred forty-three thousand, three hundred thirty-four".