20455016563046 has 32 divisors (see below), whose sum is σ = 33082612139808. Its totient is φ = 9429380421120.

The previous prime is 20455016563043. The next prime is 20455016563063. The reversal of 20455016563046 is 64036561055402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20455016563043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 462060605 + ... + 462104871.

It is an arithmetic number, because the mean of its divisors is an integer number (1033831629369).

Almost surely, 2^{20455016563046} is an apocalyptic number.

20455016563046 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20455016563046 is a deficient number, since it is larger than the sum of its proper divisors (12627595576762).

20455016563046 is a wasteful number, since it uses less digits than its factorization.

20455016563046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65336.

The product of its (nonzero) digits is 2592000, while the sum is 47.

The spelling of 20455016563046 in words is "twenty trillion, four hundred fifty-five billion, sixteen million, five hundred sixty-three thousand, forty-six".