1421145104555 has 16 divisors (see below), whose sum is σ = 1860441053184. Its totient is φ = 1033541789280.

The previous prime is 1421145104503. The next prime is 1421145104567. The reversal of 1421145104555 is 5554015411241.

It is not a de Polignac number, because 1421145104555 - 2²⁶ = 1421077995691 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, 3438134 + ... + 3829236.

It is an arithmetic number, because the mean of its divisors is an integer number (116277565824).

Almost surely, 2^{1421145104555} is an apocalyptic number.

1421145104555 is a deficient number, since it is larger than the sum of its proper divisors (439295948629).

1421145104555 is a wasteful number, since it uses less digits than its factorization.

1421145104555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457186.

The product of its (nonzero) digits is 80000, while the sum is 38.

The spelling of 1421145104555 in words is "one trillion, four hundred twenty-one billion, one hundred forty-five million, one hundred four thousand, five hundred fifty-five".