71150015700157 has 4 divisors (see below), whose sum is σ = 71176087529820. Its totient is φ = 71123943870496.

The previous prime is 71150015700121. The next prime is 71150015700217. The reversal of 71150015700157 is 75100751005117.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 48723596892441 + 22426418807716 = 6980229^2 + 4735654^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71150015700157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71150015700557) 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, 13035910738 + ... + 13035916195.

It is an arithmetic number, because the mean of its divisors is an integer number (17794021882455).

Almost surely, 2^{71150015700157} is an apocalyptic number.

It is an amenable number.

71150015700157 is a deficient number, since it is larger than the sum of its proper divisors (26071829663).

71150015700157 is a wasteful number, since it uses less digits than its factorization.

71150015700157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26071829662.

The product of its (nonzero) digits is 42875, while the sum is 40.

The spelling of 71150015700157 in words is "seventy-one trillion, one hundred fifty billion, fifteen million, seven hundred thousand, one hundred fifty-seven".