725306158660 has 36 divisors (see below), whose sum is σ = 1573861574124. Its totient is φ = 280763666880.

The previous prime is 725306158639. The next prime is 725306158673. The reversal of 725306158660 is 66851603527.

It can be written as a sum of positive squares in 2 ways, for example, as 256708408896 + 468597749764 = 506664^2 + 684542^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18849307 + ... + 18887746.

It is an arithmetic number, because the mean of its divisors is an integer number (43718377059).

Almost surely, 2^725306158660 is an apocalyptic number.

It is an amenable number.

725306158660 is an abundant number, since it is smaller than the sum of its proper divisors (848555415464).

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

725306158660 is a wasteful number, since it uses less digits than its factorization.

725306158660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37737124 (or 37737091 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 49.

The spelling of 725306158660 in words is "seven hundred twenty-five billion, three hundred six million, one hundred fifty-eight thousand, six hundred sixty".