2150454550165 has 16 divisors (see below), whose sum is σ = 2598801625728. Its totient is φ = 1708227591616.

The previous prime is 2150454550129. The next prime is 2150454550169. The reversal of 2150454550165 is 5610554540512.

It is a cyclic number.

It is not a de Polignac number, because 2150454550165 - 2¹³ = 2150454541973 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 (2150454550169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1674727 + ... + 2665636.

It is an arithmetic number, because the mean of its divisors is an integer number (162425101608).

Almost surely, 2^{2150454550165} is an apocalyptic number.

It is an amenable number.

2150454550165 is a deficient number, since it is larger than the sum of its proper divisors (448347075563).

2150454550165 is a wasteful number, since it uses less digits than its factorization.

2150454550165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4341068.

The product of its (nonzero) digits is 600000, while the sum is 43.

The spelling of 2150454550165 in words is "two trillion, one hundred fifty billion, four hundred fifty-four million, five hundred fifty thousand, one hundred sixty-five".