71117206157051 has 4 divisors (see below), whose sum is σ = 73411309581504. Its totient is φ = 68823102732600.

The previous prime is 71117206157017. The next prime is 71117206157089. The reversal of 71117206157051 is 15075160271117.

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 71117206157051 - 2¹⁰ = 71117206156027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71117206156993 and 71117206157011.

It is not an unprimeable number, because it can be changed into a prime (71117206157251) 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, 1147051712180 + ... + 1147051712241.

It is an arithmetic number, because the mean of its divisors is an integer number (18352827395376).

Almost surely, 2^{71117206157051} is an apocalyptic number.

71117206157051 is a deficient number, since it is larger than the sum of its proper divisors (2294103424453).

71117206157051 is a wasteful number, since it uses less digits than its factorization.

71117206157051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2294103424452.

The product of its (nonzero) digits is 102900, while the sum is 44.

The spelling of 71117206157051 in words is "seventy-one trillion, one hundred seventeen billion, two hundred six million, one hundred fifty-seven thousand, fifty-one".