60140322721 has 4 divisors (see below), whose sum is σ = 60148350000. Its totient is φ = 60132295444.

The previous prime is 60140322691. The next prime is 60140322727. The reversal of 60140322721 is 12722304106.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 60140322721 - 2¹³ = 60140314529 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 60140322721.

It is not an unprimeable number, because it can be changed into a prime (60140322727) 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, 4002391 + ... + 4017388.

It is an arithmetic number, because the mean of its divisors is an integer number (15037087500).

Almost surely, 2^60140322721 is an apocalyptic number.

It is an amenable number.

60140322721 is a deficient number, since it is larger than the sum of its proper divisors (8027279).

60140322721 is an equidigital number, since it uses as much as digits as its factorization.

60140322721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8027278.

The product of its (nonzero) digits is 4032, while the sum is 28.

Adding to 60140322721 its reverse (12722304106), we get a palindrome (72862626827).

The spelling of 60140322721 in words is "sixty billion, one hundred forty million, three hundred twenty-two thousand, seven hundred twenty-one".