501240166 has 16 divisors (see below), whose sum is σ = 864239904. Its totient is φ = 213574464.

The previous prime is 501240137. The next prime is 501240193. The reversal of 501240166 is 661042105.

It is a self number, because there is not a number n which added to its sum of digits gives 501240166.

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, 101055 + ... + 105898.

It is an arithmetic number, because the mean of its divisors is an integer number (54014994).

Almost surely, 2^501240166 is an apocalyptic number.

501240166 is a deficient number, since it is larger than the sum of its proper divisors (362999738).

501240166 is a wasteful number, since it uses less digits than its factorization.

501240166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207135.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 501240166 is about 22388.3935555904. The cubic root of 501240166 is about 794.3561977923.

The spelling of 501240166 in words is "five hundred one million, two hundred forty thousand, one hundred sixty-six".