501413146561 has 8 divisors (see below), whose sum is σ = 517729958144. Its totient is φ = 485105222160.

The previous prime is 501413146519. The next prime is 501413146601. The reversal of 501413146561 is 165641314105.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 501413146561 - 2⁷ = 501413146433 is a prime.

It is a super-2 number, since 2×501413146561² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 501413146561.

It is not an unprimeable number, because it can be changed into a prime (501413146061) 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 7 ways as a sum of consecutive naturals, for example, 2107026 + ... + 2332891.

It is an arithmetic number, because the mean of its divisors is an integer number (64716244768).

Almost surely, 2^501413146561 is an apocalyptic number.

It is an amenable number.

501413146561 is a deficient number, since it is larger than the sum of its proper divisors (16316811583).

501413146561 is a wasteful number, since it uses less digits than its factorization.

501413146561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4443591.

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 501413146561 in words is "five hundred one billion, four hundred thirteen million, one hundred forty-six thousand, five hundred sixty-one".