71403064320 has 176 divisors, whose sum is σ = 261004094208. Its totient is φ = 16320675840.

The previous prime is 71403064309. The next prime is 71403064339. The reversal of 71403064320 is 2346030417.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 224526 + ... + 439565.

It is an arithmetic number, because the mean of its divisors is an integer number (1482977808).

Almost surely, 2^71403064320 is an apocalyptic number.

71403064320 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

71403064320 is an abundant number, since it is smaller than the sum of its proper divisors (189601029888).

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

71403064320 is a wasteful number, since it uses less digits than its factorization.

71403064320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664126 (or 664108 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 30.

Adding to 71403064320 its reverse (2346030417), we get a palindrome (73749094737).

The spelling of 71403064320 in words is "seventy-one billion, four hundred three million, sixty-four thousand, three hundred twenty".