16169332464 has 60 divisors (see below), whose sum is σ = 45993529192. Its totient is φ = 5301417600.

The previous prime is 16169332463. The next prime is 16169332469. The reversal of 16169332464 is 46423396161.

16169332464 is a `hidden beast` number, since 1 + 616 + 9 + 3 + 3 + 24 + 6 + 4 = 666.

It is a super-2 number, since 2×16169332464² (a number of 21 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16169332463) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 911602 + ... + 929169.

Almost surely, 2^16169332464 is an apocalyptic number.

It is an amenable number.

16169332464 is an abundant number, since it is smaller than the sum of its proper divisors (29824196728).

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

16169332464 is a wasteful number, since it uses less digits than its factorization.

16169332464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1840846 (or 1840837 counting only the distinct ones).

The product of its digits is 559872, while the sum is 45.

The spelling of 16169332464 in words is "sixteen billion, one hundred sixty-nine million, three hundred thirty-two thousand, four hundred sixty-four".