15554451045 has 32 divisors (see below), whose sum is σ = 28448501760. Its totient is φ = 7109087040.

The previous prime is 15554451037. The next prime is 15554451047. The reversal of 15554451045 is 54015445551.

It is not a de Polignac number, because 15554451045 - 2³ = 15554451037 is a prime.

It is a super-2 number, since 2×15554451045² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15554450994 and 15554451012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15554451047) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 586686 + ... + 612624.

It is an arithmetic number, because the mean of its divisors is an integer number (889015680).

Almost surely, 2^15554451045 is an apocalyptic number.

15554451045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15554451045 is a deficient number, since it is larger than the sum of its proper divisors (12894050715).

15554451045 is a wasteful number, since it uses less digits than its factorization.

15554451045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31665.

The product of its (nonzero) digits is 200000, while the sum is 39.

Adding to 15554451045 its reverse (54015445551), we get a palindrome (69569896596).

The spelling of 15554451045 in words is "fifteen billion, five hundred fifty-four million, four hundred fifty-one thousand, forty-five".