20263994196655 has 8 divisors (see below), whose sum is σ = 26527410584784. Its totient is φ = 14737450324800.

The previous prime is 20263994196653. The next prime is 20263994196679. The reversal of 20263994196655 is 55669149936202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20263994196655 - 2¹ = 20263994196653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20263994196653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184218129006 + ... + 184218129115.

It is an arithmetic number, because the mean of its divisors is an integer number (3315926323098).

Almost surely, 2^{20263994196655} is an apocalyptic number.

20263994196655 is a deficient number, since it is larger than the sum of its proper divisors (6263416388129).

20263994196655 is a wasteful number, since it uses less digits than its factorization.

20263994196655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368436258137.

The product of its (nonzero) digits is 188956800, while the sum is 67.

The spelling of 20263994196655 in words is "twenty trillion, two hundred sixty-three billion, nine hundred ninety-four million, one hundred ninety-six thousand, six hundred fifty-five".