2621102664005 has 16 divisors (see below), whose sum is σ = 3612902071680. Its totient is φ = 1788204046272.

The previous prime is 2621102663987. The next prime is 2621102664013. The reversal of 2621102664005 is 5004662011262.

It is not a de Polignac number, because 2621102664005 - 2⁶ = 2621102663941 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190065815 + ... + 190079604.

It is an arithmetic number, because the mean of its divisors is an integer number (225806379480).

Almost surely, 2^{2621102664005} is an apocalyptic number.

It is an amenable number.

2621102664005 is a deficient number, since it is larger than the sum of its proper divisors (991799407675).

2621102664005 is a wasteful number, since it uses less digits than its factorization.

2621102664005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380145628.

The product of its (nonzero) digits is 34560, while the sum is 35.

Adding to 2621102664005 its reverse (5004662011262), we get a palindrome (7625764675267).

The spelling of 2621102664005 in words is "two trillion, six hundred twenty-one billion, one hundred two million, six hundred sixty-four thousand, five".