16545723552477 has 48 divisors (see below), whose sum is σ = 27432539671680. Its totient is φ = 9413600587776.

The previous prime is 16545723552469. The next prime is 16545723552503. The reversal of 16545723552477 is 77425532754561.

16545723552477 is a `hidden beast` number, since 1 + 6 + 5 + 4 + 5 + 7 + 2 + 3 + 552 + 4 + 77 = 666.

It is not a de Polignac number, because 16545723552477 - 2³ = 16545723552469 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16545723542477) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14091013 + ... + 15219989.

It is an arithmetic number, because the mean of its divisors is an integer number (571511243160).

Almost surely, 2^{16545723552477} is an apocalyptic number.

It is an amenable number.

16545723552477 is a deficient number, since it is larger than the sum of its proper divisors (10886816119203).

16545723552477 is a wasteful number, since it uses less digits than its factorization.

16545723552477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130002 (or 1129999 counting only the distinct ones).

The product of its digits is 246960000, while the sum is 63.

The spelling of 16545723552477 in words is "sixteen trillion, five hundred forty-five billion, seven hundred twenty-three million, five hundred fifty-two thousand, four hundred seventy-seven".