20460402046 has 16 divisors (see below), whose sum is σ = 35214721920. Its totient is φ = 8733807000.

The previous prime is 20460402023. The next prime is 20460402059. The reversal of 20460402046 is 64020406402.

It is a super-2 number, since 2×20460402046² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2907756 + ... + 2914783.

It is an arithmetic number, because the mean of its divisors is an integer number (2200920120).

Almost surely, 2^20460402046 is an apocalyptic number.

20460402046 is a deficient number, since it is larger than the sum of its proper divisors (14754319874).

20460402046 is a wasteful number, since it uses less digits than its factorization.

20460402046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5822799.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 20460402046 its reverse (64020406402), we get a palindrome (84480808448).

The spelling of 20460402046 in words is "twenty billion, four hundred sixty million, four hundred two thousand, forty-six".