20455572247726 has 128 divisors (see below), whose sum is σ = 39850030080000. Its totient is φ = 7644562790400.

The previous prime is 20455572247657. The next prime is 20455572247793. The reversal of 20455572247726 is 62774227555402.

It is a congruent 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 63 ways as a sum of consecutive naturals, for example, 146042275 + ... + 146182273.

It is an arithmetic number, because the mean of its divisors is an integer number (311328360000).

Almost surely, 2^{20455572247726} is an apocalyptic number.

20455572247726 is a deficient number, since it is larger than the sum of its proper divisors (19394457832274).

20455572247726 is a wasteful number, since it uses less digits than its factorization.

20455572247726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140450.

The product of its (nonzero) digits is 65856000, while the sum is 58.

The spelling of 20455572247726 in words is "twenty trillion, four hundred fifty-five billion, five hundred seventy-two million, two hundred forty-seven thousand, seven hundred twenty-six".