151685431768 has 64 divisors (see below), whose sum is σ = 316678320000. Its totient is φ = 67659121152.

The previous prime is 151685431759. The next prime is 151685431789. The reversal of 151685431768 is 867134586151.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 441073 + ... + 705631.

It is an arithmetic number, because the mean of its divisors is an integer number (4948098750).

Almost surely, 2^151685431768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 151685431768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158339160000).

151685431768 is an abundant number, since it is smaller than the sum of its proper divisors (164992888232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

151685431768 is a wasteful number, since it uses less digits than its factorization.

151685431768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264764 (or 264760 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 55.

The spelling of 151685431768 in words is "one hundred fifty-one billion, six hundred eighty-five million, four hundred thirty-one thousand, seven hundred sixty-eight".