16377473745 has 48 divisors (see below), whose sum is σ = 28516247760. Its totient is φ = 8695185408.

The previous prime is 16377473743. The next prime is 16377473747. The reversal of 16377473745 is 54737477361.

16377473745 is a `hidden beast` number, since 1 + 63 + 77 + 473 + 7 + 45 = 666.

It is an interprime number because it is at equal distance from previous prime (16377473743) and next prime (16377473747).

It can be written as a sum of positive squares in 8 ways, for example, as 3968064 + 16373505681 = 1992^2 + 127959^2 .

It is not a de Polignac number, because 16377473745 - 2¹ = 16377473743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16377473691 and 16377473700.

It is not an unprimeable number, because it can be changed into a prime (16377473743) 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, 14983419 + ... + 14984511.

It is an arithmetic number, because the mean of its divisors is an integer number (594088495).

Almost surely, 2^16377473745 is an apocalyptic number.

16377473745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16377473745 is a deficient number, since it is larger than the sum of its proper divisors (12138774015).

16377473745 is a wasteful number, since it uses less digits than its factorization.

16377473745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2306 (or 2303 counting only the distinct ones).

The product of its digits is 10372320, while the sum is 54.

The spelling of 16377473745 in words is "sixteen billion, three hundred seventy-seven million, four hundred seventy-three thousand, seven hundred forty-five".