71300661440 has 28 divisors (see below), whose sum is σ = 169784700816. Its totient is φ = 28520264448.

The previous prime is 71300661407. The next prime is 71300661451. The reversal of 71300661440 is 4416600317.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 71300661397 and 71300661406.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111406964 + ... + 111407603.

Almost surely, 2^71300661440 is an apocalyptic number.

It is an amenable number.

71300661440 is an abundant number, since it is smaller than the sum of its proper divisors (98484039376).

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

71300661440 is a wasteful number, since it uses less digits than its factorization.

71300661440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222814584 (or 222814574 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The spelling of 71300661440 in words is "seventy-one billion, three hundred million, six hundred sixty-one thousand, four hundred forty".