20038603455 has 48 divisors (see below), whose sum is σ = 38201304960. Its totient is φ = 9655248384.

The previous prime is 20038603427. The next prime is 20038603463. The reversal of 20038603455 is 55430683002.

It is a happy number.

20038603455 is a `hidden beast` number, since 2 + 0 + 0 + 3 + 8 + 603 + 45 + 5 = 666.

It is not a de Polignac number, because 20038603455 - 2⁹ = 20038602943 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 336910 + ... + 391899.

It is an arithmetic number, because the mean of its divisors is an integer number (795860520).

Almost surely, 2^20038603455 is an apocalyptic number.

20038603455 is a deficient number, since it is larger than the sum of its proper divisors (18162701505).

20038603455 is a wasteful number, since it uses less digits than its factorization.

20038603455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728880 (or 728877 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 20038603455 in words is "twenty billion, thirty-eight million, six hundred three thousand, four hundred fifty-five".