20261445420410 has 16 divisors (see below), whose sum is σ = 36984272205312. Its totient is φ = 7990429179600.

The previous prime is 20261445420361. The next prime is 20261445420449. The reversal of 20261445420410 is 1402454416202.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 14268622826 + ... + 14268624245.

It is an arithmetic number, because the mean of its divisors is an integer number (2311517012832).

Almost surely, 2^{20261445420410} is an apocalyptic number.

20261445420410 is a deficient number, since it is larger than the sum of its proper divisors (16722826784902).

20261445420410 is a wasteful number, since it uses less digits than its factorization.

20261445420410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28537247149.

The product of its (nonzero) digits is 61440, while the sum is 35.

Adding to 20261445420410 its reverse (1402454416202), we get a palindrome (21663899836612).

The spelling of 20261445420410 in words is "twenty trillion, two hundred sixty-one billion, four hundred forty-five million, four hundred twenty thousand, four hundred ten".