2151045169505 has 16 divisors (see below), whose sum is σ = 2701020762624. Its totient is φ = 1642512608640.

The previous prime is 2151045169387. The next prime is 2151045169517. The reversal of 2151045169505 is 5059615401512.

It is not a de Polignac number, because 2151045169505 - 2³⁴ = 2133865300321 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95041499 + ... + 95064128.

It is an arithmetic number, because the mean of its divisors is an integer number (168813797664).

Almost surely, 2^{2151045169505} is an apocalyptic number.

It is an amenable number.

2151045169505 is a deficient number, since it is larger than the sum of its proper divisors (549975593119).

2151045169505 is a wasteful number, since it uses less digits than its factorization.

2151045169505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190105736.

The product of its (nonzero) digits is 270000, while the sum is 44.

The spelling of 2151045169505 in words is "two trillion, one hundred fifty-one billion, forty-five million, one hundred sixty-nine thousand, five hundred five".