16491120430 has 8 divisors (see below), whose sum is σ = 29684016792. Its totient is φ = 6596448168.

The previous prime is 16491120427. The next prime is 16491120431. The reversal of 16491120430 is 3402119461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 16491120392 and 16491120401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16491120431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 824556012 + ... + 824556031.

It is an arithmetic number, because the mean of its divisors is an integer number (3710502099).

Almost surely, 2^16491120430 is an apocalyptic number.

16491120430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16491120430 is a deficient number, since it is larger than the sum of its proper divisors (13192896362).

16491120430 is a wasteful number, since it uses less digits than its factorization.

16491120430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1649112050.

The product of its (nonzero) digits is 5184, while the sum is 31.

Adding to 16491120430 its reverse (3402119461), we get a palindrome (19893239891).

The spelling of 16491120430 in words is "sixteen billion, four hundred ninety-one million, one hundred twenty thousand, four hundred thirty".