21370346596 has 27 divisors (see below), whose sum is σ = 39480286419. Its totient is φ = 10120164408.

The previous prime is 21370346593. The next prime is 21370346597. The reversal of 21370346596 is 69564307312.

The square root of 21370346596 is 146186.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21370346593) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5553145 + ... + 5556991.

Almost surely, 2^21370346596 is an apocalyptic number.

21370346596 is the 146186-th square number.

It is an amenable number.

21370346596 is a deficient number, since it is larger than the sum of its proper divisors (18109939823).

21370346596 is an frugal number, since it uses more digits than its factorization.

21370346596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7736 (or 3868 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 46.

The spelling of 21370346596 in words is "twenty-one billion, three hundred seventy million, three hundred forty-six thousand, five hundred ninety-six".