151666812 has 72 divisors (see below), whose sum is σ = 419655600. Its totient is φ = 45803520.

The previous prime is 151666799. The next prime is 151666817. The reversal of 151666812 is 218666151.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151666817) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 177378 + ... + 178230.

It is an arithmetic number, because the mean of its divisors is an integer number (5828550).

Almost surely, 2^151666812 is an apocalyptic number.

151666812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 151666812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209827800).

151666812 is an abundant number, since it is smaller than the sum of its proper divisors (267988788).

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

151666812 is a wasteful number, since it uses less digits than its factorization.

151666812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1323 (or 1318 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 151666812 is about 12315.3080351244. The cubic root of 151666812 is about 533.2900973631.

The spelling of 151666812 in words is "one hundred fifty-one million, six hundred sixty-six thousand, eight hundred twelve".