2145055866069 has 8 divisors (see below), whose sum is σ = 2878291523680. Its totient is φ = 1420928726256.

The previous prime is 2145055866049. The next prime is 2145055866091. The reversal of 2145055866069 is 9606685505412.

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

It is not a de Polignac number, because 2145055866069 - 2¹² = 2145055861973 is a prime.

It is a super-2 number, since 2×2145055866069² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145055866049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2277128899 + ... + 2277129840.

It is an arithmetic number, because the mean of its divisors is an integer number (359786440460).

Almost surely, 2^{2145055866069} is an apocalyptic number.

It is an amenable number.

2145055866069 is a deficient number, since it is larger than the sum of its proper divisors (733235657611).

2145055866069 is a wasteful number, since it uses less digits than its factorization.

2145055866069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4554258899.

The product of its (nonzero) digits is 15552000, while the sum is 57.

The spelling of 2145055866069 in words is "two trillion, one hundred forty-five billion, fifty-five million, eight hundred sixty-six thousand, sixty-nine".