72020824606 has 4 divisors (see below), whose sum is σ = 108031236912. Its totient is φ = 36010412302.

The previous prime is 72020824591. The next prime is 72020824609. The reversal of 72020824606 is 60642802027.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60642802027 = 83 ⋅730636169.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72020824609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18005206150 + ... + 18005206153.

It is an arithmetic number, because the mean of its divisors is an integer number (27007809228).

Almost surely, 2^72020824606 is an apocalyptic number.

72020824606 is a deficient number, since it is larger than the sum of its proper divisors (36010412306).

72020824606 is a wasteful number, since it uses less digits than its factorization.

72020824606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36010412305.

The product of its (nonzero) digits is 64512, while the sum is 37.

The spelling of 72020824606 in words is "seventy-two billion, twenty million, eight hundred twenty-four thousand, six hundred six".