1780540055222 has 16 divisors (see below), whose sum is σ = 2690909337600. Its totient is φ = 883591512360.

The previous prime is 1780540055221. The next prime is 1780540055297. The reversal of 1780540055222 is 2225500450871.

It is a self number, because there is not a number n which added to its sum of digits gives 1780540055222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1780540055221) 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, 5141072 + ... + 5476467.

It is an arithmetic number, because the mean of its divisors is an integer number (168181833600).

Almost surely, 2^{1780540055222} is an apocalyptic number.

1780540055222 is a deficient number, since it is larger than the sum of its proper divisors (910369282378).

1780540055222 is a wasteful number, since it uses less digits than its factorization.

1780540055222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10618171.

The product of its (nonzero) digits is 224000, while the sum is 41.

The spelling of 1780540055222 in words is "one trillion, seven hundred eighty billion, five hundred forty million, fifty-five thousand, two hundred twenty-two".