151681801686 has 16 divisors (see below), whose sum is σ = 303367528368. Its totient is φ = 50559946400.

The previous prime is 151681801673. The next prime is 151681801727. The reversal of 151681801686 is 686108186151.

It is a happy number.

151681801686 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×151681801686² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 650656 + ... + 852476.

It is an arithmetic number, because the mean of its divisors is an integer number (18960470523).

Almost surely, 2^151681801686 is an apocalyptic number.

151681801686 is an abundant number, since it is smaller than the sum of its proper divisors (151685726682).

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

151681801686 is a wasteful number, since it uses less digits than its factorization.

151681801686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327087.

The product of its (nonzero) digits is 552960, while the sum is 51.

The spelling of 151681801686 in words is "one hundred fifty-one billion, six hundred eighty-one million, eight hundred one thousand, six hundred eighty-six".