20964154248 has 48 divisors (see below), whose sum is σ = 60117798780. Its totient is φ = 6576989184.

The previous prime is 20964154223. The next prime is 20964154261. The reversal of 20964154248 is 84245146902.

It is a happy number.

20964154248 is a `hidden beast` number, since 2 + 0 + 9 + 64 + 1 + 542 + 48 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 20827685124 + 136469124 = 144318^2 + 11682^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8562565 + ... + 8565012.

Almost surely, 2^20964154248 is an apocalyptic number.

It is an amenable number.

20964154248 is an abundant number, since it is smaller than the sum of its proper divisors (39153644532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20964154248 is a wasteful number, since it uses less digits than its factorization.

20964154248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17127606 (or 17127599 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 20964154248 in words is "twenty billion, nine hundred sixty-four million, one hundred fifty-four thousand, two hundred forty-eight".