16530153003 has 64 divisors (see below), whose sum is σ = 30512921600. Its totient is φ = 8719096608.

The previous prime is 16530152959. The next prime is 16530153011. The reversal of 16530153003 is 30035103561.

16530153003 is a `hidden beast` number, since 1 + 653 + 0 + 1 + 5 + 3 + 0 + 0 + 3 = 666.

It is not a de Polignac number, because 16530153003 - 2²² = 16525958699 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (16530153023) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 157488 + ... + 240546.

It is an arithmetic number, because the mean of its divisors is an integer number (476764400).

Almost surely, 2^16530153003 is an apocalyptic number.

16530153003 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

16530153003 is a deficient number, since it is larger than the sum of its proper divisors (13982768597).

16530153003 is an frugal number, since it uses more digits than its factorization.

16530153003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83100 (or 83082 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 27.

Adding to 16530153003 its reverse (30035103561), we get a palindrome (46565256564).

The spelling of 16530153003 in words is "sixteen billion, five hundred thirty million, one hundred fifty-three thousand, three".