1616100731663 has 8 divisors (see below), whose sum is σ = 1765192872576. Its totient is φ = 1467370906200.

The previous prime is 1616100731633. The next prime is 1616100731671. The reversal of 1616100731663 is 3661370016161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1616100731663 - 2¹⁶ = 1616100666127 is a prime.

It is a super-2 number, since 2×1616100731663² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1616100731663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1616100731633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90569531 + ... + 90587372.

It is an arithmetic number, because the mean of its divisors is an integer number (220649109072).

Almost surely, 2^{1616100731663} is an apocalyptic number.

1616100731663 is a deficient number, since it is larger than the sum of its proper divisors (149092140913).

1616100731663 is a wasteful number, since it uses less digits than its factorization.

1616100731663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181157725.

The product of its (nonzero) digits is 81648, while the sum is 41.

The spelling of 1616100731663 in words is "one trillion, six hundred sixteen billion, one hundred million, seven hundred thirty-one thousand, six hundred sixty-three".