16363452645 has 48 divisors (see below), whose sum is σ = 28903754880. Its totient is φ = 8561501568.

The previous prime is 16363452583. The next prime is 16363452653. The reversal of 16363452645 is 54625436361.

16363452645 is a `hidden beast` number, since 1 + 6 + 3 + 634 + 5 + 2 + 6 + 4 + 5 = 666.

It is not a de Polignac number, because 16363452645 - 2⁸ = 16363452389 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 16363452645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1329339 + ... + 1341591.

It is an arithmetic number, because the mean of its divisors is an integer number (602161560).

Almost surely, 2^16363452645 is an apocalyptic number.

16363452645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16363452645 is a deficient number, since it is larger than the sum of its proper divisors (12540302235).

16363452645 is a wasteful number, since it uses less digits than its factorization.

16363452645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12826 (or 12823 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 45.

The spelling of 16363452645 in words is "sixteen billion, three hundred sixty-three million, four hundred fifty-two thousand, six hundred forty-five".