20411551542355 has 16 divisors (see below), whose sum is σ = 24910425568224. Its totient is φ = 16051855207680.

The previous prime is 20411551542323. The next prime is 20411551542367. The reversal of 20411551542355 is 55324515511402.

It is not a de Polignac number, because 20411551542355 - 2⁵ = 20411551542323 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19688677 + ... + 20699446.

It is an arithmetic number, because the mean of its divisors is an integer number (1556901598014).

Almost surely, 2^{20411551542355} is an apocalyptic number.

20411551542355 is a deficient number, since it is larger than the sum of its proper divisors (4498874025869).

20411551542355 is a wasteful number, since it uses less digits than its factorization.

20411551542355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40389846.

The product of its (nonzero) digits is 600000, while the sum is 43.

The spelling of 20411551542355 in words is "twenty trillion, four hundred eleven billion, five hundred fifty-one million, five hundred forty-two thousand, three hundred fifty-five".