2064361256551 has 6 divisors (see below), whose sum is σ = 2269091298656. Its totient is φ = 1876692051300.

The previous prime is 2064361256533. The next prime is 2064361256561. The reversal of 2064361256551 is 1556521634602.

It is not a de Polignac number, because 2064361256551 - 2¹⁷ = 2064361125479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2064361256561) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8530418295 + ... + 8530418536.

Almost surely, 2^{2064361256551} is an apocalyptic number.

2064361256551 is a deficient number, since it is larger than the sum of its proper divisors (204730042105).

2064361256551 is a wasteful number, since it uses less digits than its factorization.

2064361256551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17060836853 (or 17060836842 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 46.

The spelling of 2064361256551 in words is "two trillion, sixty-four billion, three hundred sixty-one million, two hundred fifty-six thousand, five hundred fifty-one".