15530455451 has 16 divisors (see below), whose sum is σ = 18818288640. Its totient is φ = 12512016000.

The previous prime is 15530455427. The next prime is 15530455513. The reversal of 15530455451 is 15455403551.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15530455451 is a prime.

It is a super-2 number, since 2×15530455451² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15530455151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2480 + ... + 176258.

It is an arithmetic number, because the mean of its divisors is an integer number (1176143040).

Almost surely, 2^15530455451 is an apocalyptic number.

15530455451 is a deficient number, since it is larger than the sum of its proper divisors (3287833189).

15530455451 is a wasteful number, since it uses less digits than its factorization.

15530455451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174554.

The product of its (nonzero) digits is 150000, while the sum is 38.

The spelling of 15530455451 in words is "fifteen billion, five hundred thirty million, four hundred fifty-five thousand, four hundred fifty-one".