71145491330 has 32 divisors (see below), whose sum is σ = 133188314688. Its totient is φ = 27340689600.

The previous prime is 71145491321. The next prime is 71145491371. The reversal of 71145491330 is 3319454117.

It is a happy 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, 1329956 + ... + 1382415.

It is an arithmetic number, because the mean of its divisors is an integer number (4162134834).

Almost surely, 2^71145491330 is an apocalyptic number.

71145491330 is a deficient number, since it is larger than the sum of its proper divisors (62042823358).

71145491330 is a wasteful number, since it uses less digits than its factorization.

71145491330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2712482.

The product of its (nonzero) digits is 45360, while the sum is 38.

The spelling of 71145491330 in words is "seventy-one billion, one hundred forty-five million, four hundred ninety-one thousand, three hundred thirty".