151605312817 has 16 divisors (see below), whose sum is σ = 176216471424. Its totient is φ = 127735200000.

The previous prime is 151605312779. The next prime is 151605312839. The reversal of 151605312817 is 718213506151.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-151605312817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 151605312817.

It is not an unprimeable number, because it can be changed into a prime (151605312917) 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, 557817 + ... + 783817.

It is an arithmetic number, because the mean of its divisors is an integer number (11013529464).

Almost surely, 2^151605312817 is an apocalyptic number.

It is an amenable number.

151605312817 is a deficient number, since it is larger than the sum of its proper divisors (24611158607).

151605312817 is a wasteful number, since it uses less digits than its factorization.

151605312817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227640.

The product of its (nonzero) digits is 50400, while the sum is 40.

Adding to 151605312817 its reverse (718213506151), we get a palindrome (869818818968).

The spelling of 151605312817 in words is "one hundred fifty-one billion, six hundred five million, three hundred twelve thousand, eight hundred seventeen".