1612420027505 has 32 divisors (see below), whose sum is σ = 2276020515840. Its totient is φ = 1073767518720.

The previous prime is 1612420027489. The next prime is 1612420027507. The reversal of 1612420027505 is 5057200242161.

It is not a de Polignac number, because 1612420027505 - 2⁴ = 1612420027489 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (1612420027507) 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 31 ways as a sum of consecutive naturals, for example, 4611284 + ... + 4948613.

It is an arithmetic number, because the mean of its divisors is an integer number (71125641120).

Almost surely, 2^{1612420027505} is an apocalyptic number.

It is an amenable number.

1612420027505 is a deficient number, since it is larger than the sum of its proper divisors (663600488335).

1612420027505 is an equidigital number, since it uses as much as digits as its factorization.

1612420027505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9560049.

The product of its (nonzero) digits is 33600, while the sum is 35.

Adding to 1612420027505 its reverse (5057200242161), we get a palindrome (6669620269666).

The spelling of 1612420027505 in words is "one trillion, six hundred twelve billion, four hundred twenty million, twenty-seven thousand, five hundred five".