725837166 has 16 divisors (see below), whose sum is σ = 1612971600. Its totient is φ = 241945704.

The previous prime is 725837159. The next prime is 725837171. The reversal of 725837166 is 661738527.

725837166 is a `hidden beast` number, since 7 + 2 + 583 + 7 + 1 + 66 = 666.

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, 6720661 + ... + 6720768.

It is an arithmetic number, because the mean of its divisors is an integer number (100810725).

Almost surely, 2^725837166 is an apocalyptic number.

725837166 is an abundant number, since it is smaller than the sum of its proper divisors (887134434).

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

725837166 is a wasteful number, since it uses less digits than its factorization.

725837166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13441440 (or 13441434 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 725837166 is about 26941.3653328854. The cubic root of 725837166 is about 898.6965353334.

The spelling of 725837166 in words is "seven hundred twenty-five million, eight hundred thirty-seven thousand, one hundred sixty-six".