20560601577 has 16 divisors (see below), whose sum is σ = 28609377408. Its totient is φ = 13109585280.

The previous prime is 20560601557. The next prime is 20560601609. The reversal of 20560601577 is 77510606502.

It is not a de Polignac number, because 20560601577 - 2⁷ = 20560601449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20560601557) 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, 1098933 + ... + 1117485.

It is an arithmetic number, because the mean of its divisors is an integer number (1788086088).

Almost surely, 2^20560601577 is an apocalyptic number.

It is an amenable number.

20560601577 is a deficient number, since it is larger than the sum of its proper divisors (8048775831).

20560601577 is a wasteful number, since it uses less digits than its factorization.

20560601577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34640.

The product of its (nonzero) digits is 88200, while the sum is 39.

The spelling of 20560601577 in words is "twenty billion, five hundred sixty million, six hundred one thousand, five hundred seventy-seven".