7640520705601 has 16 divisors (see below), whose sum is σ = 8770016268288. Its totient is φ = 6520550518800.

The previous prime is 7640520705487. The next prime is 7640520705733. The reversal of 7640520705601 is 1065070250467.

It is a cyclic number.

It is not a de Polignac number, because 7640520705601 - 2¹⁹ = 7640520181313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7640520705001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2237556 + ... + 4504186.

It is an arithmetic number, because the mean of its divisors is an integer number (548126016768).

Almost surely, 2^{7640520705601} is an apocalyptic number.

It is an amenable number.

7640520705601 is a deficient number, since it is larger than the sum of its proper divisors (1129495562687).

7640520705601 is a wasteful number, since it uses less digits than its factorization.

7640520705601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2268732.

The product of its (nonzero) digits is 352800, while the sum is 43.

The spelling of 7640520705601 in words is "seven trillion, six hundred forty billion, five hundred twenty million, seven hundred five thousand, six hundred one".