20435016554 has 16 divisors (see below), whose sum is σ = 30718614528. Its totient is φ = 10195497312.

The previous prime is 20435016551. The next prime is 20435016587. The reversal of 20435016554 is 45561053402.

It is not an unprimeable number, because it can be changed into a prime (20435016551) 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, 3312677 + ... + 3318839.

It is an arithmetic number, because the mean of its divisors is an integer number (1919913408).

Almost surely, 2^20435016554 is an apocalyptic number.

20435016554 is a deficient number, since it is larger than the sum of its proper divisors (10283597974).

20435016554 is a wasteful number, since it uses less digits than its factorization.

20435016554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9469.

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 20435016554 its reverse (45561053402), we get a palindrome (65996069956).

The spelling of 20435016554 in words is "twenty billion, four hundred thirty-five million, sixteen thousand, five hundred fifty-four".