16305252644 has 24 divisors (see below), whose sum is σ = 29791644288. Its totient is φ = 7793755200.

The previous prime is 16305252617. The next prime is 16305252661. The reversal of 16305252644 is 44625250361.

It is a super-2 number, since 2×16305252644² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16305252598 and 16305252607.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116489 + ... + 214895.

It is an arithmetic number, because the mean of its divisors is an integer number (1241318512).

Almost surely, 2^16305252644 is an apocalyptic number.

It is an amenable number.

16305252644 is a deficient number, since it is larger than the sum of its proper divisors (13486391644).

16305252644 is a wasteful number, since it uses less digits than its factorization.

16305252644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100235 (or 100233 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 38.

The spelling of 16305252644 in words is "sixteen billion, three hundred five million, two hundred fifty-two thousand, six hundred forty-four".