71223605664154 has 8 divisors (see below), whose sum is σ = 107780854589460. Its totient is φ = 35296654134336.

The previous prime is 71223605664067. The next prime is 71223605664191. The reversal of 71223605664154 is 45146650632217.

It can be written as a sum of positive squares in 2 ways, for example, as 46071825990129 + 25151779674025 = 6787623^2 + 5015155^2 .

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

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, 157574348589 + ... + 157574349040.

Almost surely, 2^{71223605664154} is an apocalyptic number.

71223605664154 is a deficient number, since it is larger than the sum of its proper divisors (36557248925306).

71223605664154 is a wasteful number, since it uses less digits than its factorization.

71223605664154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315148697744.

The product of its (nonzero) digits is 7257600, while the sum is 52.

The spelling of 71223605664154 in words is "seventy-one trillion, two hundred twenty-three billion, six hundred five million, six hundred sixty-four thousand, one hundred fifty-four".