2660636471 has 8 divisors (see below), whose sum is σ = 2670121680. Its totient is φ = 2651164992.

The previous prime is 2660636431. The next prime is 2660636479. The reversal of 2660636471 is 1746360662.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2660636471 is a prime.

It is a super-3 number, since 3×2660636471³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2660636479) 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, 517811 + ... + 522923.

It is an arithmetic number, because the mean of its divisors is an integer number (333765210).

Almost surely, 2^2660636471 is an apocalyptic number.

2660636471 is a deficient number, since it is larger than the sum of its proper divisors (9485209).

2660636471 is a wasteful number, since it uses less digits than its factorization.

2660636471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6865.

The product of its (nonzero) digits is 217728, while the sum is 41.

The square root of 2660636471 is about 51581.3577855411. The cubic root of 2660636471 is about 1385.6764837696.

The spelling of 2660636471 in words is "two billion, six hundred sixty million, six hundred thirty-six thousand, four hundred seventy-one".