2669764578655 has 16 divisors (see below), whose sum is σ = 3393009268704. Its totient is φ = 2009679206400.

The previous prime is 2669764578643. The next prime is 2669764578671. The reversal of 2669764578655 is 5568754679662.

It is not a de Polignac number, because 2669764578655 - 2¹⁵ = 2669764545887 is a prime.

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, 3532362 + ... + 4221031.

It is an arithmetic number, because the mean of its divisors is an integer number (212063079294).

Almost surely, 2^{2669764578655} is an apocalyptic number.

2669764578655 is a deficient number, since it is larger than the sum of its proper divisors (723244690049).

2669764578655 is a wasteful number, since it uses less digits than its factorization.

2669764578655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7757466.

The product of its digits is 4572288000, while the sum is 76.

The spelling of 2669764578655 in words is "two trillion, six hundred sixty-nine billion, seven hundred sixty-four million, five hundred seventy-eight thousand, six hundred fifty-five".