501211344455345 has 16 divisors (see below), whose sum is σ = 649245279778560. Its totient is φ = 370310270683584.

The previous prime is 501211344455329. The next prime is 501211344455347. The reversal of 501211344455345 is 543554443112105.

It is a cyclic number.

It is not a de Polignac number, because 501211344455345 - 2⁴ = 501211344455329 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 501211344455345.

It is not an unprimeable number, because it can be changed into a prime (501211344455347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75144126269 + ... + 75144132938.

It is an arithmetic number, because the mean of its divisors is an integer number (40577829986160).

Almost surely, 2^{501211344455345} is an apocalyptic number.

It is an amenable number.

501211344455345 is a deficient number, since it is larger than the sum of its proper divisors (148033935323215).

501211344455345 is a wasteful number, since it uses less digits than its factorization.

501211344455345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150288259264.

The product of its (nonzero) digits is 2880000, while the sum is 47.

The spelling of 501211344455345 in words is "five hundred one trillion, two hundred eleven billion, three hundred forty-four million, four hundred fifty-five thousand, three hundred forty-five".