155016274427 has 8 divisors (see below), whose sum is σ = 177187347936. Its totient is φ = 132851673792.

The previous prime is 155016274397. The next prime is 155016274447. The reversal of 155016274427 is 724472610551.

It is a happy number.

155016274427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 155016274427 - 2¹⁰ = 155016273403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155016274447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1566788 + ... + 1662785.

It is an arithmetic number, because the mean of its divisors is an integer number (22148418492).

Almost surely, 2^155016274427 is an apocalyptic number.

155016274427 is a deficient number, since it is larger than the sum of its proper divisors (22171073509).

155016274427 is an equidigital number, since it uses as much as digits as its factorization.

155016274427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3236437.

The product of its (nonzero) digits is 470400, while the sum is 44.

Adding to 155016274427 its reverse (724472610551), we get a palindrome (879488884978).

The spelling of 155016274427 in words is "one hundred fifty-five billion, sixteen million, two hundred seventy-four thousand, four hundred twenty-seven".