151524511561 has 4 divisors (see below), whose sum is σ = 151526146324. Its totient is φ = 151522876800.

The previous prime is 151524511559. The next prime is 151524511573. The reversal of 151524511561 is 165115425151.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 165115425151 = 65537 ⋅2519423.

It can be written as a sum of positive squares in 2 ways, for example, as 33510963600 + 118013547961 = 183060^2 + 343531^2 .

It is a cyclic number.

It is not a de Polignac number, because 151524511561 - 2¹ = 151524511559 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 151524511561.

It is not an unprimeable number, because it can be changed into a prime (151524511261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 669420 + ... + 866701.

It is an arithmetic number, because the mean of its divisors is an integer number (37881536581).

Almost surely, 2^151524511561 is an apocalyptic number.

It is an amenable number.

151524511561 is a deficient number, since it is larger than the sum of its proper divisors (1634763).

151524511561 is an equidigital number, since it uses as much as digits as its factorization.

151524511561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1634762.

The product of its digits is 30000, while the sum is 37.

The spelling of 151524511561 in words is "one hundred fifty-one billion, five hundred twenty-four million, five hundred eleven thousand, five hundred sixty-one".