20954647095 has 8 divisors (see below), whose sum is σ = 33527435376. Its totient is φ = 11175811776.

The previous prime is 20954647079. The next prime is 20954647127. The reversal of 20954647095 is 59074645902.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20954647095 - 2⁴ = 20954647079 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 698488222 + ... + 698488251.

It is an arithmetic number, because the mean of its divisors is an integer number (4190929422).

Almost surely, 2^20954647095 is an apocalyptic number.

20954647095 is a deficient number, since it is larger than the sum of its proper divisors (12572788281).

20954647095 is a wasteful number, since it uses less digits than its factorization.

20954647095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1396976481.

The product of its (nonzero) digits is 2721600, while the sum is 51.

The spelling of 20954647095 in words is "twenty billion, nine hundred fifty-four million, six hundred forty-seven thousand, ninety-five".