16213765761603 has 24 divisors (see below), whose sum is σ = 24732575142912. Its totient is φ = 10214644107888.

The previous prime is 16213765761563. The next prime is 16213765761617. The reversal of 16213765761603 is 30616756731261.

16213765761603 is a `hidden beast` number, since 1 + 6 + 2 + 1 + 3 + 7 + 6 + 576 + 1 + 60 + 3 = 666.

It is not a de Polignac number, because 16213765761603 - 2¹³ = 16213765753411 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16213765761603.

It is not an unprimeable number, because it can be changed into a prime (16213765761643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 471834451 + ... + 471868812.

It is an arithmetic number, because the mean of its divisors is an integer number (1030523964288).

Almost surely, 2^{16213765761603} is an apocalyptic number.

16213765761603 is a deficient number, since it is larger than the sum of its proper divisors (8518809381309).

16213765761603 is a wasteful number, since it uses less digits than its factorization.

16213765761603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943703375 (or 943703372 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 54.

The spelling of 16213765761603 in words is "sixteen trillion, two hundred thirteen billion, seven hundred sixty-five million, seven hundred sixty-one thousand, six hundred three".