71966159480 has 32 divisors (see below), whose sum is σ = 164204483040. Its totient is φ = 28381019520.

The previous prime is 71966159443. The next prime is 71966159509. The reversal of 71966159480 is 8495166917.

It is a super-2 number, since 2×71966159480² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12667259 + ... + 12672938.

It is an arithmetic number, because the mean of its divisors is an integer number (5131390095).

Almost surely, 2^71966159480 is an apocalyptic number.

It is an amenable number.

71966159480 is an abundant number, since it is smaller than the sum of its proper divisors (92238323560).

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

71966159480 is a wasteful number, since it uses less digits than its factorization.

71966159480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25340279 (or 25340275 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 56.

The spelling of 71966159480 in words is "seventy-one billion, nine hundred sixty-six million, one hundred fifty-nine thousand, four hundred eighty".