264155680 has 48 divisors (see below), whose sum is σ = 625627800. Its totient is φ = 105398272.

The previous prime is 264155677. The next prime is 264155687. The reversal of 264155680 is 86551462.

It can be written as a sum of positive squares in 4 ways, for example, as 248251536 + 15904144 = 15756^2 + 3988^2 .

It is not an unprimeable number, because it can be changed into a prime (264155687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70002 + ... + 73678.

Almost surely, 2^264155680 is an apocalyptic number.

264155680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264155680 is an abundant number, since it is smaller than the sum of its proper divisors (361472120).

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

264155680 is a wasteful number, since it uses less digits than its factorization.

264155680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4141 (or 4133 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 264155680 is about 16252.8668240406. The cubic root of 264155680 is about 641.6329394390.

The spelling of 264155680 in words is "two hundred sixty-four million, one hundred fifty-five thousand, six hundred eighty".