20069304861 has 16 divisors (see below), whose sum is σ = 27628789760. Its totient is φ = 12944882160.

The previous prime is 20069304847. The next prime is 20069304883. The reversal of 20069304861 is 16840396002.

It is not a de Polignac number, because 20069304861 - 2⁷ = 20069304733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20069304361) 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, 410520 + ... + 456798.

It is an arithmetic number, because the mean of its divisors is an integer number (1726799360).

Almost surely, 2^20069304861 is an apocalyptic number.

It is an amenable number.

20069304861 is a deficient number, since it is larger than the sum of its proper divisors (7559484899).

20069304861 is a wasteful number, since it uses less digits than its factorization.

20069304861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50976.

The product of its (nonzero) digits is 62208, while the sum is 39.

The spelling of 20069304861 in words is "twenty billion, sixty-nine million, three hundred four thousand, eight hundred sixty-one".