71616229536 has 48 divisors (see below), whose sum is σ = 188799496704. Its totient is φ = 23769613824.

The previous prime is 71616229523. The next prime is 71616229549. The reversal of 71616229536 is 63592261617.

It is an interprime number because it is at equal distance from previous prime (71616229523) and next prime (71616229549).

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 1578496 + ... + 1623231.

It is an arithmetic number, because the mean of its divisors is an integer number (3933322848).

Almost surely, 2^71616229536 is an apocalyptic number.

It is an amenable number.

71616229536 is an abundant number, since it is smaller than the sum of its proper divisors (117183267168).

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

71616229536 is a wasteful number, since it uses less digits than its factorization.

71616229536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3201973 (or 3201965 counting only the distinct ones).

The product of its digits is 816480, while the sum is 48.

The spelling of 71616229536 in words is "seventy-one billion, six hundred sixteen million, two hundred twenty-nine thousand, five hundred thirty-six".