1620106211018 has 24 divisors (see below), whose sum is σ = 2658790995876. Its totient is φ = 737809265280.

The previous prime is 1620106210979. The next prime is 1620106211023. The reversal of 1620106211018 is 8101126010261.

It can be written as a sum of positive squares in 2 ways, for example, as 1267207244209 + 352898966809 = 1125703^2 + 594053^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24759305 + ... + 24824652.

Almost surely, 2^{1620106211018} is an apocalyptic number.

1620106211018 is a deficient number, since it is larger than the sum of its proper divisors (1038684784858).

1620106211018 is a wasteful number, since it uses less digits than its factorization.

1620106211018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49584038 (or 49584007 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 29.

The spelling of 1620106211018 in words is "one trillion, six hundred twenty billion, one hundred six million, two hundred eleven thousand, eighteen".