264537347720 has 16 divisors (see below), whose sum is σ = 595209032460. Its totient is φ = 105814939072.

The previous prime is 264537347717. The next prime is 264537347747. The reversal of 264537347720 is 27743735462.

It can be written as a sum of positive squares in 2 ways, for example, as 238196706916 + 26340640804 = 488054^2 + 162298^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3306716807 + ... + 3306716886.

Almost surely, 2^264537347720 is an apocalyptic number.

264537347720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264537347720 is an abundant number, since it is smaller than the sum of its proper divisors (330671684740).

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

264537347720 is a wasteful number, since it uses less digits than its factorization.

264537347720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6613433704 (or 6613433700 counting only the distinct ones).

The product of its (nonzero) digits is 5927040, while the sum is 50.

The spelling of 264537347720 in words is "two hundred sixty-four billion, five hundred thirty-seven million, three hundred forty-seven thousand, seven hundred twenty".