71064242455 has 4 divisors (see below), whose sum is σ = 85277090952. Its totient is φ = 56851393960.

The previous prime is 71064242399. The next prime is 71064242471. The reversal of 71064242455 is 55424246017.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 71064242455 - 2²¹ = 71062145303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7106424241 + ... + 7106424250.

It is an arithmetic number, because the mean of its divisors is an integer number (21319272738).

Almost surely, 2^71064242455 is an apocalyptic number.

71064242455 is a deficient number, since it is larger than the sum of its proper divisors (14212848497).

71064242455 is a wasteful number, since it uses less digits than its factorization.

71064242455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14212848496.

The product of its (nonzero) digits is 268800, while the sum is 40.

The spelling of 71064242455 in words is "seventy-one billion, sixty-four million, two hundred forty-two thousand, four hundred fifty-five".