71233183680 has 56 divisors (see below), whose sum is σ = 226165361232. Its totient is φ = 18995515392.

The previous prime is 71233183663. The next prime is 71233183687. The reversal of 71233183680 is 8638133217.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71233183687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37099657 + ... + 37101576.

Almost surely, 2^71233183680 is an apocalyptic number.

It is an amenable number.

71233183680 is an abundant number, since it is smaller than the sum of its proper divisors (154932177552).

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

71233183680 is a wasteful number, since it uses less digits than its factorization.

71233183680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74201253 (or 74201243 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The spelling of 71233183680 in words is "seventy-one billion, two hundred thirty-three million, one hundred eighty-three thousand, six hundred eighty".