2620164452505 has 32 divisors (see below), whose sum is σ = 4333982024064. Its totient is φ = 1350851475456.

The previous prime is 2620164452491. The next prime is 2620164452513. The reversal of 2620164452505 is 5052544610262.

It is a happy number.

It is not a de Polignac number, because 2620164452505 - 2⁴ = 2620164452489 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20876974 + ... + 21002103.

It is an arithmetic number, because the mean of its divisors is an integer number (135436938252).

Almost surely, 2^{2620164452505} is an apocalyptic number.

It is an amenable number.

2620164452505 is a deficient number, since it is larger than the sum of its proper divisors (1713817571559).

2620164452505 is a wasteful number, since it uses less digits than its factorization.

2620164452505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41879225.

The product of its (nonzero) digits is 576000, while the sum is 42.

The spelling of 2620164452505 in words is "two trillion, six hundred twenty billion, one hundred sixty-four million, four hundred fifty-two thousand, five hundred five".