21654628322996 has 48 divisors (see below), whose sum is σ = 39661722067968. Its totient is φ = 10333260633600.

The previous prime is 21654628322993. The next prime is 21654628323001. The reversal of 21654628322996 is 69922382645612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21654628322993) 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, 439535 + ... + 6595638.

It is an arithmetic number, because the mean of its divisors is an integer number (826285876416).

Almost surely, 2^{21654628322996} is an apocalyptic number.

It is an amenable number.

21654628322996 is a deficient number, since it is larger than the sum of its proper divisors (18007093744972).

21654628322996 is a wasteful number, since it uses less digits than its factorization.

21654628322996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7035552 (or 7035550 counting only the distinct ones).

The product of its digits is 134369280, while the sum is 65.

The spelling of 21654628322996 in words is "twenty-one trillion, six hundred fifty-four billion, six hundred twenty-eight million, three hundred twenty-two thousand, nine hundred ninety-six".