336021536721 has 16 divisors (see below), whose sum is σ = 482534966144. Its totient is φ = 206764268544.

The previous prime is 336021536671. The next prime is 336021536743. The reversal of 336021536721 is 127635120633.

It is not a de Polignac number, because 336021536721 - 2⁷ = 336021536593 is a prime.

It is a super-2 number, since 2×336021536721² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

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 336021536721.

It is not an unprimeable number, because it can be changed into a prime (336021536021) 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 15 ways as a sum of consecutive naturals, for example, 75825 + ... + 823281.

It is an arithmetic number, because the mean of its divisors is an integer number (30158435384).

Almost surely, 2^336021536721 is an apocalyptic number.

It is an amenable number.

336021536721 is a deficient number, since it is larger than the sum of its proper divisors (146513429423).

336021536721 is a wasteful number, since it uses less digits than its factorization.

336021536721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759000.

The product of its (nonzero) digits is 136080, while the sum is 39.

The spelling of 336021536721 in words is "three hundred thirty-six billion, twenty-one million, five hundred thirty-six thousand, seven hundred twenty-one".