21735536064046 has 12 divisors (see below), whose sum is σ = 37926292520088. Its totient is φ = 9315229741692.

The previous prime is 21735536064041. The next prime is 21735536064079. The reversal of 21735536064046 is 64046063553712.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21735536063984 and 21735536064002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21735536064041) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 110895592066 + ... + 110895592261.

It is an arithmetic number, because the mean of its divisors is an integer number (3160524376674).

Almost surely, 2^{21735536064046} is an apocalyptic number.

21735536064046 is a deficient number, since it is larger than the sum of its proper divisors (16190756456042).

21735536064046 is a wasteful number, since it uses less digits than its factorization.

21735536064046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221791184343 (or 221791184336 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 52.

The spelling of 21735536064046 in words is "twenty-one trillion, seven hundred thirty-five billion, five hundred thirty-six million, sixty-four thousand, forty-six".