20621602654127 has 8 divisors (see below), whose sum is σ = 20981160301200. Its totient is φ = 20262379639104.

The previous prime is 20621602654123. The next prime is 20621602654183. The reversal of 20621602654127 is 72145620612602.

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

It is a cyclic number.

It is not a de Polignac number, because 20621602654127 - 2² = 20621602654123 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 (20621602654123) 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 7 ways as a sum of consecutive naturals, for example, 83533688 + ... + 83780189.

It is an arithmetic number, because the mean of its divisors is an integer number (2622645037650).

Almost surely, 2^{20621602654127} is an apocalyptic number.

20621602654127 is a deficient number, since it is larger than the sum of its proper divisors (359557647073).

20621602654127 is a wasteful number, since it uses less digits than its factorization.

20621602654127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167316025.

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 20621602654127 in words is "twenty trillion, six hundred twenty-one billion, six hundred two million, six hundred fifty-four thousand, one hundred twenty-seven".