20127102554 has 12 divisors (see below), whose sum is σ = 32514180426. Its totient is φ = 9289098072.

The previous prime is 20127102517. The next prime is 20127102571. The reversal of 20127102554 is 45520172102.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 19352983225 + 774119329 = 139115^2 + 27823^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 709487 + ... + 737309.

Almost surely, 2^20127102554 is an apocalyptic number.

20127102554 is a deficient number, since it is larger than the sum of its proper divisors (12387077872).

20127102554 is an frugal number, since it uses more digits than its factorization.

20127102554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55661 (or 27838 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 29.

Adding to 20127102554 its reverse (45520172102), we get a palindrome (65647274656).

The spelling of 20127102554 in words is "twenty billion, one hundred twenty-seven million, one hundred two thousand, five hundred fifty-four".