20012035667 has 16 divisors (see below), whose sum is σ = 21776006112. Its totient is φ = 18280339200.

The previous prime is 20012035643. The next prime is 20012035679. The reversal of 20012035667 is 76653021002.

It is a cyclic number.

It is not a de Polignac number, because 20012035667 - 2⁸ = 20012035411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20012035067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4655063 + ... + 4659359.

It is an arithmetic number, because the mean of its divisors is an integer number (1361000382).

Almost surely, 2^20012035667 is an apocalyptic number.

20012035667 is a deficient number, since it is larger than the sum of its proper divisors (1763970445).

20012035667 is a wasteful number, since it uses less digits than its factorization.

20012035667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7958.

The product of its (nonzero) digits is 15120, while the sum is 32.

Adding to 20012035667 its reverse (76653021002), we get a palindrome (96665056669).

The spelling of 20012035667 in words is "twenty billion, twelve million, thirty-five thousand, six hundred sixty-seven".