71651061215 has 8 divisors (see below), whose sum is σ = 90506603760. Its totient is φ = 54303962112.

The previous prime is 71651061211. The next prime is 71651061217. The reversal of 71651061215 is 51216015617.

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

It is a cyclic number.

It is not a de Polignac number, because 71651061215 - 2² = 71651061211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71651061211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 377110754 + ... + 377110943.

It is an arithmetic number, because the mean of its divisors is an integer number (11313325470).

Almost surely, 2^71651061215 is an apocalyptic number.

71651061215 is a deficient number, since it is larger than the sum of its proper divisors (18855542545).

71651061215 is a wasteful number, since it uses less digits than its factorization.

71651061215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754221721.

The product of its (nonzero) digits is 12600, while the sum is 35.

The spelling of 71651061215 in words is "seventy-one billion, six hundred fifty-one million, sixty-one thousand, two hundred fifteen".