20002660601 has 16 divisors (see below), whose sum is σ = 25103551488. Its totient is φ = 15483258000.

The previous prime is 20002660511. The next prime is 20002660603. The reversal of 20002660601 is 10606620002.

It is not a de Polignac number, because 20002660601 - 2³⁴ = 2822791417 is a prime.

It is a super-2 number, since 2×20002660601² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20002660603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 848555 + ... + 871808.

It is an arithmetic number, because the mean of its divisors is an integer number (1568971968).

Almost surely, 2^20002660601 is an apocalyptic number.

It is an amenable number.

20002660601 is a deficient number, since it is larger than the sum of its proper divisors (5100890887).

20002660601 is a wasteful number, since it uses less digits than its factorization.

20002660601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1720532.

The product of its (nonzero) digits is 864, while the sum is 23.

The spelling of 20002660601 in words is "twenty billion, two million, six hundred sixty thousand, six hundred one".