155622866855 has 8 divisors (see below), whose sum is σ = 186767902464. Its totient is φ = 124484652000.

The previous prime is 155622866851. The next prime is 155622866881. The reversal of 155622866855 is 558668226551.

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

It is not a de Polignac number, because 155622866855 - 2² = 155622866851 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 155622866794 and 155622866803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155622866851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1654856 + ... + 1746365.

It is an arithmetic number, because the mean of its divisors is an integer number (23345987808).

Almost surely, 2^155622866855 is an apocalyptic number.

155622866855 is a deficient number, since it is larger than the sum of its proper divisors (31145035609).

155622866855 is an equidigital number, since it uses as much as digits as its factorization.

155622866855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3410377.

The product of its digits is 34560000, while the sum is 59.

The spelling of 155622866855 in words is "one hundred fifty-five billion, six hundred twenty-two million, eight hundred sixty-six thousand, eight hundred fifty-five".