2071564071 has 4 divisors (see below), whose sum is σ = 2762085432. Its totient is φ = 1381042712.

The previous prime is 2071564067. The next prime is 2071564081. The reversal of 2071564071 is 1704651702.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2071564071 - 2² = 2071564067 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2071564021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 345260676 + ... + 345260681.

It is an arithmetic number, because the mean of its divisors is an integer number (690521358).

Almost surely, 2^2071564071 is an apocalyptic number.

2071564071 is a deficient number, since it is larger than the sum of its proper divisors (690521361).

2071564071 is an equidigital number, since it uses as much as digits as its factorization.

2071564071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690521360.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 2071564071 is about 45514.4380499199. The cubic root of 2071564071 is about 1274.7728050390.

The spelling of 2071564071 in words is "two billion, seventy-one million, five hundred sixty-four thousand, seventy-one".