71563153144 has 64 divisors (see below), whose sum is σ = 158814950400. Its totient is φ = 29579222400.

The previous prime is 71563153091. The next prime is 71563153147. The reversal of 71563153144 is 44135136517.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 71563153097 and 71563153106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71563153147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1455279 + ... + 1503649.

It is an arithmetic number, because the mean of its divisors is an integer number (2481483600).

Almost surely, 2^71563153144 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 71563153144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79407475200).

71563153144 is an abundant number, since it is smaller than the sum of its proper divisors (87251797256).

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

71563153144 is a wasteful number, since it uses less digits than its factorization.

71563153144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49324 (or 49320 counting only the distinct ones).

The product of its digits is 151200, while the sum is 40.

The spelling of 71563153144 in words is "seventy-one billion, five hundred sixty-three million, one hundred fifty-three thousand, one hundred forty-four".