1555540014223 has 8 divisors (see below), whose sum is σ = 1675207272816. Its totient is φ = 1435874232000.

The previous prime is 1555540014221. The next prime is 1555540014239. The reversal of 1555540014223 is 3224100455551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1555540014223 - 2¹ = 1555540014221 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 (1555540014221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2875923 + ... + 3373723.

It is an arithmetic number, because the mean of its divisors is an integer number (209400909102).

Almost surely, 2^{1555540014223} is an apocalyptic number.

1555540014223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1555540014223 is a deficient number, since it is larger than the sum of its proper divisors (119667258593).

1555540014223 is a wasteful number, since it uses less digits than its factorization.

1555540014223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738185.

The product of its (nonzero) digits is 120000, while the sum is 37.

Adding to 1555540014223 its reverse (3224100455551), we get a palindrome (4779640469774).

The spelling of 1555540014223 in words is "one trillion, five hundred fifty-five billion, five hundred forty million, fourteen thousand, two hundred twenty-three".