1436554740221 has 16 divisors (see below), whose sum is σ = 1570608299520. Its totient is φ = 1308033661440.

The previous prime is 1436554740211. The next prime is 1436554740241. The reversal of 1436554740221 is 1220474556341.

It is not a de Polignac number, because 1436554740221 - 2²⁶ = 1436487631357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1436554740211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1297970 + ... + 2134908.

It is an arithmetic number, because the mean of its divisors is an integer number (98163018720).

Almost surely, 2^{1436554740221} is an apocalyptic number.

It is an amenable number.

1436554740221 is a deficient number, since it is larger than the sum of its proper divisors (134053559299).

1436554740221 is a wasteful number, since it uses less digits than its factorization.

1436554740221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840244.

The product of its (nonzero) digits is 806400, while the sum is 44.

The spelling of 1436554740221 in words is "one trillion, four hundred thirty-six billion, five hundred fifty-four million, seven hundred forty thousand, two hundred twenty-one".