20954082145 has 16 divisors (see below), whose sum is σ = 25731095040. Its totient is φ = 16373890624.

The previous prime is 20954082137. The next prime is 20954082161. The reversal of 20954082145 is 54128045902.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20954082145 - 2³ = 20954082137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20954082098 and 20954082107.

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 15 ways as a sum of consecutive naturals, for example, 29571 + ... + 206839.

It is an arithmetic number, because the mean of its divisors is an integer number (1608193440).

Almost surely, 2^20954082145 is an apocalyptic number.

It is an amenable number.

20954082145 is a deficient number, since it is larger than the sum of its proper divisors (4777012895).

20954082145 is a wasteful number, since it uses less digits than its factorization.

20954082145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177824.

The product of its (nonzero) digits is 115200, while the sum is 40.

The spelling of 20954082145 in words is "twenty billion, nine hundred fifty-four million, eighty-two thousand, one hundred forty-five".