71601692016081 has 8 divisors (see below), whose sum is σ = 95469352919584. Its totient is φ = 47734246228320.

The previous prime is 71601692016053. The next prime is 71601692016091. The reversal of 71601692016081 is 18061029610617.

It is a happy number.

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

It is not a de Polignac number, because 71601692016081 - 2¹⁰ = 71601692015057 is a prime.

It is a super-2 number, since 2×71601692016081² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71601692016081.

It is not an unprimeable number, because it can be changed into a prime (71601692016091) 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, 53000671 + ... + 54334836.

It is an arithmetic number, because the mean of its divisors is an integer number (11933669114948).

Almost surely, 2^{71601692016081} is an apocalyptic number.

It is an amenable number.

71601692016081 is a deficient number, since it is larger than the sum of its proper divisors (23867660903503).

71601692016081 is a wasteful number, since it uses less digits than its factorization.

71601692016081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107557871.

The product of its (nonzero) digits is 217728, while the sum is 48.

The spelling of 71601692016081 in words is "seventy-one trillion, six hundred one billion, six hundred ninety-two million, sixteen thousand, eighty-one".