151566840 has 48 divisors (see below), whose sum is σ = 492593400. Its totient is φ = 40417728.

The previous prime is 151566829. The next prime is 151566841. The reversal of 151566840 is 48665151.

151566840 is a `hidden beast` number, since 1 + 51 + 566 + 8 + 40 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 151566795 and 151566804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151566841) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 210150 + ... + 210869.

Almost surely, 2^151566840 is an apocalyptic number.

151566840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151566840 is an abundant number, since it is smaller than the sum of its proper divisors (341026560).

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

151566840 is a wasteful number, since it uses less digits than its factorization.

151566840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421036 (or 421029 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 151566840 is about 12311.2485150776. The cubic root of 151566840 is about 533.1728979238.

The spelling of 151566840 in words is "one hundred fifty-one million, five hundred sixty-six thousand, eight hundred forty".