1612556340018 has 32 divisors (see below), whose sum is σ = 3512222985600. Its totient is φ = 490596222336.

The previous prime is 1612556339987. The next prime is 1612556340029. The reversal of 1612556340018 is 8100436552161.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 116137998 + ... + 116151881.

It is an arithmetic number, because the mean of its divisors is an integer number (109756968300).

Almost surely, 2^{1612556340018} is an apocalyptic number.

1612556340018 is an abundant number, since it is smaller than the sum of its proper divisors (1899666645582).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1612556340018 is a wasteful number, since it uses less digits than its factorization.

1612556340018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232289986.

The product of its (nonzero) digits is 172800, while the sum is 42.

The spelling of 1612556340018 in words is "one trillion, six hundred twelve billion, five hundred fifty-six million, three hundred forty thousand, eighteen".