60720070021 has 32 divisors (see below), whose sum is σ = 69445918080. Its totient is φ = 52627968000.

The previous prime is 60720070009. The next prime is 60720070031. The reversal of 60720070021 is 12007002706.

60720070021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 60720070021 - 2¹⁵ = 60720037253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60720070031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16142781 + ... + 16146541.

It is an arithmetic number, because the mean of its divisors is an integer number (2170184940).

Almost surely, 2^60720070021 is an apocalyptic number.

It is an amenable number.

60720070021 is a deficient number, since it is larger than the sum of its proper divisors (8725848059).

60720070021 is a wasteful number, since it uses less digits than its factorization.

60720070021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4357.

The product of its (nonzero) digits is 1176, while the sum is 25.

Adding to 60720070021 its reverse (12007002706), we get a palindrome (72727072727).

The spelling of 60720070021 in words is "sixty billion, seven hundred twenty million, seventy thousand, twenty-one".