1641388055065 has 16 divisors (see below), whose sum is σ = 2149478478720. Its totient is φ = 1193318824320.

The previous prime is 1641388055059. The next prime is 1641388055071. The reversal of 1641388055065 is 5605508831461.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1641388055059) and next prime (1641388055071).

It is not a de Polignac number, because 1641388055065 - 2¹³ = 1641388046873 is a prime.

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, 5065725 + ... + 5379994.

It is an arithmetic number, because the mean of its divisors is an integer number (134342404920).

Almost surely, 2^{1641388055065} is an apocalyptic number.

It is an amenable number.

1641388055065 is a deficient number, since it is larger than the sum of its proper divisors (508090423655).

1641388055065 is a wasteful number, since it uses less digits than its factorization.

1641388055065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10448592.

The product of its (nonzero) digits is 3456000, while the sum is 52.

The spelling of 1641388055065 in words is "one trillion, six hundred forty-one billion, three hundred eighty-eight million, fifty-five thousand, sixty-five".