1617656340044 has 48 divisors (see below), whose sum is σ = 2921600186400. Its totient is φ = 783211161600.

The previous prime is 1617656340031. The next prime is 1617656340059. The reversal of 1617656340044 is 4400436567161.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113266184 + ... + 113280464.

It is an arithmetic number, because the mean of its divisors is an integer number (60866670550).

Almost surely, 2^{1617656340044} is an apocalyptic number.

It is an amenable number.

1617656340044 is a deficient number, since it is larger than the sum of its proper divisors (1303943846356).

1617656340044 is a wasteful number, since it uses less digits than its factorization.

1617656340044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19434 (or 19432 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 47.

The spelling of 1617656340044 in words is "one trillion, six hundred seventeen billion, six hundred fifty-six million, three hundred forty thousand, forty-four".