71631155006 has 4 divisors (see below), whose sum is σ = 107446732512. Its totient is φ = 35815577502.

The previous prime is 71631154993. The next prime is 71631155059. The reversal of 71631155006 is 60055113617.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17907788750 + ... + 17907788753.

It is an arithmetic number, because the mean of its divisors is an integer number (26861683128).

Almost surely, 2^71631155006 is an apocalyptic number.

71631155006 is a deficient number, since it is larger than the sum of its proper divisors (35815577506).

71631155006 is a wasteful number, since it uses less digits than its factorization.

71631155006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35815577505.

The product of its (nonzero) digits is 18900, while the sum is 35.

The spelling of 71631155006 in words is "seventy-one billion, six hundred thirty-one million, one hundred fifty-five thousand, six".