15532745061 has 4 divisors (see below), whose sum is σ = 20710326752. Its totient is φ = 10355163372.

The previous prime is 15532745029. The next prime is 15532745069. The reversal of 15532745061 is 16054723551.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 15532745061 - 2⁵ = 15532745029 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15532745069) 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 3 ways as a sum of consecutive naturals, for example, 2588790841 + ... + 2588790846.

It is an arithmetic number, because the mean of its divisors is an integer number (5177581688).

Almost surely, 2^15532745061 is an apocalyptic number.

It is an amenable number.

15532745061 is a deficient number, since it is larger than the sum of its proper divisors (5177581691).

15532745061 is an equidigital number, since it uses as much as digits as its factorization.

15532745061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5177581690.

The product of its (nonzero) digits is 126000, while the sum is 39.

The spelling of 15532745061 in words is "fifteen billion, five hundred thirty-two million, seven hundred forty-five thousand, sixty-one".