20315455052 has 6 divisors (see below), whose sum is σ = 35552046348. Its totient is φ = 10157727524.

The previous prime is 20315455037. The next prime is 20315455081. The reversal of 20315455052 is 25055451302.

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 as a sum of consecutive naturals, namely, 2539431878 + ... + 2539431885.

It is an arithmetic number, because the mean of its divisors is an integer number (5925341058).

Almost surely, 2^20315455052 is an apocalyptic number.

It is an amenable number.

20315455052 is a deficient number, since it is larger than the sum of its proper divisors (15236591296).

20315455052 is a wasteful number, since it uses less digits than its factorization.

20315455052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5078863767 (or 5078863765 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 32.

The spelling of 20315455052 in words is "twenty billion, three hundred fifteen million, four hundred fifty-five thousand, fifty-two".