72022051206520 has 16 divisors (see below), whose sum is σ = 162049615214760. Its totient is φ = 28808820482592.

The previous prime is 72022051206409. The next prime is 72022051206529. The reversal of 72022051206520 is 2560215022027.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72022051206529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 900275640042 + ... + 900275640121.

Almost surely, 2^{72022051206520} is an apocalyptic number.

It is an amenable number.

72022051206520 is an abundant number, since it is smaller than the sum of its proper divisors (90027564008240).

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

72022051206520 is a wasteful number, since it uses less digits than its factorization.

72022051206520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800551280174 (or 1800551280170 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 34.

Adding to 72022051206520 its reverse (2560215022027), we get a palindrome (74582266228547).

The spelling of 72022051206520 in words is "seventy-two trillion, twenty-two billion, fifty-one million, two hundred six thousand, five hundred twenty".