71311245155464 has 64 divisors (see below), whose sum is σ = 143894834899200. Its totient is φ = 33010214092800.

The previous prime is 71311245155459. The next prime is 71311245155471. The reversal of 71311245155464 is 46455154211317.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4172377 + ... + 12650344.

It is an arithmetic number, because the mean of its divisors is an integer number (2248356795300).

Almost surely, 2^{71311245155464} is an apocalyptic number.

It is an amenable number.

71311245155464 is an abundant number, since it is smaller than the sum of its proper divisors (72583589743736).

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

71311245155464 is a wasteful number, since it uses less digits than its factorization.

71311245155464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16823254 (or 16823250 counting only the distinct ones).

The product of its digits is 2016000, while the sum is 49.

The spelling of 71311245155464 in words is "seventy-one trillion, three hundred eleven billion, two hundred forty-five million, one hundred fifty-five thousand, four hundred sixty-four".