20005532511355 has 16 divisors (see below), whose sum is σ = 24296112336384. Its totient is φ = 15811447551840.

The previous prime is 20005532511337. The next prime is 20005532511403. The reversal of 20005532511355 is 55311523550002.

It is not a de Polignac number, because 20005532511355 - 2⁵ = 20005532511323 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 62726302 + ... + 63044428.

It is an arithmetic number, because the mean of its divisors is an integer number (1518507021024).

Almost surely, 2^{20005532511355} is an apocalyptic number.

20005532511355 is a deficient number, since it is larger than the sum of its proper divisors (4290579825029).

20005532511355 is a wasteful number, since it uses less digits than its factorization.

20005532511355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469746.

The product of its (nonzero) digits is 112500, while the sum is 37.

The spelling of 20005532511355 in words is "twenty trillion, five billion, five hundred thirty-two million, five hundred eleven thousand, three hundred fifty-five".