16777241640 has 80 divisors (see below), whose sum is σ = 56390184180. Its totient is φ = 4473930240.

The previous prime is 16777241629. The next prime is 16777241641. The reversal of 16777241640 is 4614277761.

16777241640 is a `hidden beast` number, since 167 + 7 + 72 + 416 + 4 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 16568323524 + 208918116 = 128718^2 + 14454^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (16777241641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2585841 + ... + 2592320.

Almost surely, 2^16777241640 is an apocalyptic number.

16777241640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16777241640 is an abundant number, since it is smaller than the sum of its proper divisors (39612942540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16777241640 is a wasteful number, since it uses less digits than its factorization.

16777241640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5178184 (or 5178171 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 45.

The spelling of 16777241640 in words is "sixteen billion, seven hundred seventy-seven million, two hundred forty-one thousand, six hundred forty".