71220453036 has 48 divisors (see below), whose sum is σ = 169752124416. Its totient is φ = 23230209024.

The previous prime is 71220453019. The next prime is 71220453037. The reversal of 71220453036 is 63035402217.

It is a junction number, because it is equal to n+sod(n) for n = 71220452988 and 71220453006.

It is not an unprimeable number, because it can be changed into a prime (71220453037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3564105 + ... + 3584031.

It is an arithmetic number, because the mean of its divisors is an integer number (3536502592).

Almost surely, 2^71220453036 is an apocalyptic number.

It is an amenable number.

71220453036 is an abundant number, since it is smaller than the sum of its proper divisors (98531671380).

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

71220453036 is a wasteful number, since it uses less digits than its factorization.

71220453036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26318 (or 26316 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 33.

The spelling of 71220453036 in words is "seventy-one billion, two hundred twenty million, four hundred fifty-three thousand, thirty-six".