501401170601 has 4 divisors (see below), whose sum is σ = 506570254932. Its totient is φ = 496232086272.

The previous prime is 501401170559. The next prime is 501401170603. The reversal of 501401170601 is 106071104105.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 113216098576 + 388185072025 = 336476^2 + 623045^2 .

It is a cyclic number.

It is not a de Polignac number, because 501401170601 - 2⁶ = 501401170537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (501401170603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2584542020 + ... + 2584542213.

It is an arithmetic number, because the mean of its divisors is an integer number (126642563733).

Almost surely, 2^501401170601 is an apocalyptic number.

It is an amenable number.

501401170601 is a deficient number, since it is larger than the sum of its proper divisors (5169084331).

501401170601 is an equidigital number, since it uses as much as digits as its factorization.

501401170601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5169084330.

The product of its (nonzero) digits is 840, while the sum is 26.

Adding to 501401170601 its reverse (106071104105), we get a palindrome (607472274706).

The spelling of 501401170601 in words is "five hundred one billion, four hundred one million, one hundred seventy thousand, six hundred one".