71172151000 has 64 divisors (see below), whose sum is σ = 167380200000. Its totient is φ = 28325721600.

The previous prime is 71172150983. The next prime is 71172151019. The reversal of 71172151000 is 15127117.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20176 + ... + 377824.

It is an arithmetic number, because the mean of its divisors is an integer number (2615315625).

Almost surely, 2^71172151000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71172151000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83690100000).

71172151000 is an abundant number, since it is smaller than the sum of its proper divisors (96208049000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71172151000 is a wasteful number, since it uses less digits than its factorization.

71172151000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357869 (or 357855 counting only the distinct ones).

The product of its (nonzero) digits is 490, while the sum is 25.

Adding to 71172151000 its reverse (15127117), we get a palindrome (71187278117).

The spelling of 71172151000 in words is "seventy-one billion, one hundred seventy-two million, one hundred fifty-one thousand".