2064655546165 has 8 divisors (see below), whose sum is σ = 2623327047000. Its totient is φ = 1554564175872.

The previous prime is 2064655546153. The next prime is 2064655546171. The reversal of 2064655546165 is 5616455564602.

It can be written as a sum of positive squares in 4 ways, for example, as 19086251409 + 2045569294756 = 138153^2 + 1430234^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2064655546165 - 2²¹ = 2064653449013 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12145032540 + ... + 12145032709.

It is an arithmetic number, because the mean of its divisors is an integer number (327915880875).

Almost surely, 2^{2064655546165} is an apocalyptic number.

It is an amenable number.

2064655546165 is a deficient number, since it is larger than the sum of its proper divisors (558671500835).

2064655546165 is a wasteful number, since it uses less digits than its factorization.

2064655546165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24290065271.

The product of its (nonzero) digits is 25920000, while the sum is 55.

The spelling of 2064655546165 in words is "two trillion, sixty-four billion, six hundred fifty-five million, five hundred forty-six thousand, one hundred sixty-five".