20100000046 has 16 divisors (see below), whose sum is σ = 34676618976. Its totient is φ = 8559416736.

The previous prime is 20099999981. The next prime is 20100000047. The reversal of 20100000046 is 64000000102.

It is a junction number, because it is equal to n+sod(n) for n = 20099999981 and 20100000035.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20100000047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4570141 + ... + 4574536.

It is an arithmetic number, because the mean of its divisors is an integer number (2167288686).

Almost surely, 2^20100000046 is an apocalyptic number.

20100000046 is a deficient number, since it is larger than the sum of its proper divisors (14576618930).

20100000046 is a wasteful number, since it uses less digits than its factorization.

20100000046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9144843.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 20100000046 its reverse (64000000102), we get a palindrome (84100000148).

The spelling of 20100000046 in words is "twenty billion, one hundred million, forty-six", and thus it is an aban number.