71660151742 has 4 divisors (see below), whose sum is σ = 107490227616. Its totient is φ = 35830075870.

The previous prime is 71660151683. The next prime is 71660151743. The reversal of 71660151742 is 24715106617.

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

It is a junction number, because it is equal to n+sod(n) for n = 71660151695 and 71660151704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71660151743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17915037934 + ... + 17915037937.

It is an arithmetic number, because the mean of its divisors is an integer number (26872556904).

Almost surely, 2^71660151742 is an apocalyptic number.

71660151742 is a deficient number, since it is larger than the sum of its proper divisors (35830075874).

71660151742 is a wasteful number, since it uses less digits than its factorization.

71660151742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35830075873.

The product of its (nonzero) digits is 70560, while the sum is 40.

The spelling of 71660151742 in words is "seventy-one billion, six hundred sixty million, one hundred fifty-one thousand, seven hundred forty-two".