71460818550 has 144 divisors (see below), whose sum is σ = 210617858880. Its totient is φ = 17226840000.

The previous prime is 71460818521. The next prime is 71460818551. The reversal of 71460818550 is 5581806417.

71460818550 is a `hidden beast` number, since 7 + 1 + 460 + 8 + 185 + 5 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 71460818496 and 71460818505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71460818551) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 845725 + ... + 926375.

It is an arithmetic number, because the mean of its divisors is an integer number (1462624020).

Almost surely, 2^71460818550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71460818550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105308929440).

71460818550 is an abundant number, since it is smaller than the sum of its proper divisors (139157040330).

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

71460818550 is a wasteful number, since it uses less digits than its factorization.

71460818550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80859 (or 80851 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 45.

The spelling of 71460818550 in words is "seventy-one billion, four hundred sixty million, eight hundred eighteen thousand, five hundred fifty".