1616363505361 has 4 divisors (see below), whose sum is σ = 1763305642224. Its totient is φ = 1469421368500.

The previous prime is 1616363505359. The next prime is 1616363505373. The reversal of 1616363505361 is 1635053636161.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1616363505361 - 2¹ = 1616363505359 is a prime.

It is a super-2 number, since 2×1616363505361² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1616363505461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73471068415 + ... + 73471068436.

It is an arithmetic number, because the mean of its divisors is an integer number (440826410556).

Almost surely, 2^{1616363505361} is an apocalyptic number.

1616363505361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1616363505361 is a deficient number, since it is larger than the sum of its proper divisors (146942136863).

1616363505361 is a wasteful number, since it uses less digits than its factorization.

1616363505361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146942136862.

The product of its (nonzero) digits is 874800, while the sum is 46.

The spelling of 1616363505361 in words is "one trillion, six hundred sixteen billion, three hundred sixty-three million, five hundred five thousand, three hundred sixty-one".