71820224563000 has 32 divisors (see below), whose sum is σ = 168059325479760. Its totient is φ = 28728089824800.

The previous prime is 71820224562991. The next prime is 71820224563013. The reversal of 71820224563000 is 36542202817.

It is a Harshad number since it is a multiple of its sum of digits (40).

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, 35910111282 + ... + 35910113281.

Almost surely, 2^{71820224563000} is an apocalyptic number.

It is an amenable number.

71820224563000 is an abundant number, since it is smaller than the sum of its proper divisors (96239100916760).

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

71820224563000 is a wasteful number, since it uses less digits than its factorization.

71820224563000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71820224584 (or 71820224570 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

Adding to 71820224563000 its reverse (36542202817), we get a palindrome (71856766765817).

The spelling of 71820224563000 in words is "seventy-one trillion, eight hundred twenty billion, two hundred twenty-four million, five hundred sixty-three thousand".