151668560 has 40 divisors (see below), whose sum is σ = 373375656. Its totient is φ = 57098240.

The previous prime is 151668557. The next prime is 151668589. The reversal of 151668560 is 65866151.

It can be written as a sum of positive squares in 4 ways, for example, as 27836176 + 123832384 = 5276^2 + 11128^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54401 + ... + 57120.

Almost surely, 2^151668560 is an apocalyptic number.

151668560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151668560 is an abundant number, since it is smaller than the sum of its proper divisors (221707096).

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

151668560 is a wasteful number, since it uses less digits than its factorization.

151668560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111551 (or 111545 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 151668560 is about 12315.3790035061. The cubic root of 151668560 is about 533.2921461249.

The spelling of 151668560 in words is "one hundred fifty-one million, six hundred sixty-eight thousand, five hundred sixty".