7022520645 has 16 divisors (see below), whose sum is σ = 12841180800. Its totient is φ = 3210295104.

The previous prime is 7022520601. The next prime is 7022520671. The reversal of 7022520645 is 5460252207.

It is not a de Polignac number, because 7022520645 - 2⁸ = 7022520389 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33440470 + ... + 33440679.

It is an arithmetic number, because the mean of its divisors is an integer number (802573800).

Almost surely, 2^7022520645 is an apocalyptic number.

It is an amenable number.

7022520645 is a deficient number, since it is larger than the sum of its proper divisors (5818660155).

7022520645 is a wasteful number, since it uses less digits than its factorization.

7022520645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66881164.

The product of its (nonzero) digits is 33600, while the sum is 33.

The square root of 7022520645 is about 83800.4811740362. The cubic root of 7022520645 is about 1914.9804364155.

The spelling of 7022520645 in words is "seven billion, twenty-two million, five hundred twenty thousand, six hundred forty-five".