15534514045 has 4 divisors (see below), whose sum is σ = 18641416860. Its totient is φ = 12427611232.

The previous prime is 15534514003. The next prime is 15534514069. The reversal of 15534514045 is 54041543551.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54041543551 = 140533 ⋅384547.

It can be written as a sum of positive squares in 2 ways, for example, as 8482041604 + 7052472441 = 92098^2 + 83979^2 .

It is a cyclic number.

It is not a de Polignac number, because 15534514045 - 2¹³ = 15534505853 is a prime.

It is a super-2 number, since 2×15534514045² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15534513995 and 15534514013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1553451400 + ... + 1553451409.

It is an arithmetic number, because the mean of its divisors is an integer number (4660354215).

Almost surely, 2^15534514045 is an apocalyptic number.

It is an amenable number.

15534514045 is a deficient number, since it is larger than the sum of its proper divisors (3106902815).

15534514045 is an equidigital number, since it uses as much as digits as its factorization.

15534514045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3106902814.

The product of its (nonzero) digits is 120000, while the sum is 37.

The spelling of 15534514045 in words is "fifteen billion, five hundred thirty-four million, five hundred fourteen thousand, forty-five".