1555116655006 has 4 divisors (see below), whose sum is σ = 2332674982512. Its totient is φ = 777558327502.

The previous prime is 1555116654979. The next prime is 1555116655051. The reversal of 1555116655006 is 6005566115551.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 388779163750 + ... + 388779163753.

It is an arithmetic number, because the mean of its divisors is an integer number (583168745628).

Almost surely, 2^{1555116655006} is an apocalyptic number.

1555116655006 is a deficient number, since it is larger than the sum of its proper divisors (777558327506).

1555116655006 is an equidigital number, since it uses as much as digits as its factorization.

1555116655006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777558327505.

The product of its (nonzero) digits is 675000, while the sum is 46.

It can be divided in two parts, 1555116 and 655006, that added together give a palindrome (2210122).

The spelling of 1555116655006 in words is "one trillion, five hundred fifty-five billion, one hundred sixteen million, six hundred fifty-five thousand, six".