501455121045 has 16 divisors (see below), whose sum is σ = 802530539520. Its totient is φ = 267375282624.

The previous prime is 501455121023. The next prime is 501455121149. The reversal of 501455121045 is 540121554105.

It is a happy number.

It is not a de Polignac number, because 501455121045 - 2¹⁰ = 501455120021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 501455120997 and 501455121015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4154050 + ... + 4273059.

It is an arithmetic number, because the mean of its divisors is an integer number (50158158720).

Almost surely, 2^501455121045 is an apocalyptic number.

It is an amenable number.

501455121045 is a deficient number, since it is larger than the sum of its proper divisors (301075418475).

501455121045 is a wasteful number, since it uses less digits than its factorization.

501455121045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8431084.

The product of its (nonzero) digits is 20000, while the sum is 33.

The spelling of 501455121045 in words is "five hundred one billion, four hundred fifty-five million, one hundred twenty-one thousand, forty-five".