1616601011644 has 6 divisors (see below), whose sum is σ = 2829051770384. Its totient is φ = 808300505820.

The previous prime is 1616601011629. The next prime is 1616601011653. The reversal of 1616601011644 is 4461101066161.

It is a super-2 number, since 2×1616601011644² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202075126452 + ... + 202075126459.

Almost surely, 2^{1616601011644} is an apocalyptic number.

It is an amenable number.

1616601011644 is a deficient number, since it is larger than the sum of its proper divisors (1212450758740).

1616601011644 is a wasteful number, since it uses less digits than its factorization.

1616601011644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404150252915 (or 404150252913 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The spelling of 1616601011644 in words is "one trillion, six hundred sixteen billion, six hundred one million, eleven thousand, six hundred forty-four".