21096953366 has 16 divisors (see below), whose sum is σ = 33062093568. Its totient is φ = 10077388200.

The previous prime is 21096953341. The next prime is 21096953401. The reversal of 21096953366 is 66335969012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245450 + ... + 320061.

It is an arithmetic number, because the mean of its divisors is an integer number (2066380848).

Almost surely, 2^21096953366 is an apocalyptic number.

21096953366 is a deficient number, since it is larger than the sum of its proper divisors (11965140202).

21096953366 is a wasteful number, since it uses less digits than its factorization.

21096953366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566347.

The product of its (nonzero) digits is 1574640, while the sum is 50.

The spelling of 21096953366 in words is "twenty-one billion, ninety-six million, nine hundred fifty-three thousand, three hundred sixty-six".