2665854071 has 16 divisors (see below), whose sum is σ = 2880917760. Its totient is φ = 2458537920.

The previous prime is 2665854019. The next prime is 2665854073. The reversal of 2665854071 is 1704585662.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2665854071 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 (2665854073) 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, 375860 + ... + 382886.

It is an arithmetic number, because the mean of its divisors is an integer number (180057360).

Almost surely, 2^2665854071 is an apocalyptic number.

2665854071 is a deficient number, since it is larger than the sum of its proper divisors (215063689).

2665854071 is a wasteful number, since it uses less digits than its factorization.

2665854071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7574.

The product of its (nonzero) digits is 403200, while the sum is 44.

The square root of 2665854071 is about 51631.9094262453. The cubic root of 2665854071 is about 1386.5816787998.

The spelling of 2665854071 in words is "two billion, six hundred sixty-five million, eight hundred fifty-four thousand, seventy-one".