71660476631478 has 32 divisors (see below), whose sum is σ = 164032416288000. Its totient is φ = 20444791753440.

The previous prime is 71660476631477. The next prime is 71660476631479. The reversal of 71660476631478 is 87413667406617.

It is an interprime number because it is at equal distance from previous prime (71660476631477) and next prime (71660476631479).

It is a super-2 number, since 2×71660476631478² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71660476631477) by changing a digit.

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, 1234559853 + ... + 1234617896.

It is an arithmetic number, because the mean of its divisors is an integer number (5126013009000).

Almost surely, 2^{71660476631478} is an apocalyptic number.

71660476631478 is an abundant number, since it is smaller than the sum of its proper divisors (92371939656522).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71660476631478 is a wasteful number, since it uses less digits than its factorization.

71660476631478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2469178452.

The product of its (nonzero) digits is 170698752, while the sum is 66.

The spelling of 71660476631478 in words is "seventy-one trillion, six hundred sixty billion, four hundred seventy-six million, six hundred thirty-one thousand, four hundred seventy-eight".