71366554051 has 4 divisors (see below), whose sum is σ = 76856288992. Its totient is φ = 65876819112.

The previous prime is 71366554031. The next prime is 71366554073. The reversal of 71366554051 is 15045566317.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15045566317 = 3119 ⋅4823843.

It is not a de Polignac number, because 71366554051 - 2¹¹ = 71366552003 is a prime.

It is a super-2 number, since 2×71366554051² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71366553989 and 71366554007.

It is not an unprimeable number, because it can be changed into a prime (71366554001) 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, 2744867451 + ... + 2744867476.

It is an arithmetic number, because the mean of its divisors is an integer number (19214072248).

Almost surely, 2^71366554051 is an apocalyptic number.

71366554051 is a deficient number, since it is larger than the sum of its proper divisors (5489734941).

71366554051 is a wasteful number, since it uses less digits than its factorization.

71366554051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5489734940.

The product of its (nonzero) digits is 378000, while the sum is 43.

The spelling of 71366554051 in words is "seventy-one billion, three hundred sixty-six million, five hundred fifty-four thousand, fifty-one".