151505616561 has 16 divisors (see below), whose sum is σ = 228996344640. Its totient is φ = 88327160640.

The previous prime is 151505616517. The next prime is 151505616571. The reversal of 151505616561 is 165616505151.

It is not a de Polignac number, because 151505616561 - 2⁹ = 151505616049 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (151505616571) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102229770 + ... + 102231251.

It is an arithmetic number, because the mean of its divisors is an integer number (14312271540).

Almost surely, 2^151505616561 is an apocalyptic number.

It is an amenable number.

151505616561 is a deficient number, since it is larger than the sum of its proper divisors (77490728079).

151505616561 is a wasteful number, since it uses less digits than its factorization.

151505616561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204461056.

The product of its (nonzero) digits is 135000, while the sum is 42.

The spelling of 151505616561 in words is "one hundred fifty-one billion, five hundred five million, six hundred sixteen thousand, five hundred sixty-one".