20621152027 has 8 divisors (see below), whose sum is σ = 23572295936. Its totient is φ = 17671324392.

The previous prime is 20621151989. The next prime is 20621152051. The reversal of 20621152027 is 72025112602.

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 20621152027 - 2⁷ = 20621151899 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20621151986 and 20621152004.

It is not an unprimeable number, because it can be changed into a prime (20621152087) 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, 295263 + ... + 358360.

It is an arithmetic number, because the mean of its divisors is an integer number (2946536992).

Almost surely, 2^20621152027 is an apocalyptic number.

20621152027 is a deficient number, since it is larger than the sum of its proper divisors (2951143909).

20621152027 is an equidigital number, since it uses as much as digits as its factorization.

20621152027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658137.

The product of its (nonzero) digits is 3360, while the sum is 28.

Adding to 20621152027 its reverse (72025112602), we get a palindrome (92646264629).

The spelling of 20621152027 in words is "twenty billion, six hundred twenty-one million, one hundred fifty-two thousand, twenty-seven".