20315455566030 has 24 divisors (see below), whose sum is σ = 52820184471912. Its totient is φ = 5417454817584.

The previous prime is 20315455565969. The next prime is 20315455566067. The reversal of 20315455566030 is 3066555451302.

20315455566030 is a `hidden beast` number, since 2 + 0 + 3 + 1 + 5 + 4 + 5 + 556 + 60 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112863641944 + ... + 112863642123.

It is an arithmetic number, because the mean of its divisors is an integer number (2200841019663).

Almost surely, 2^{20315455566030} is an apocalyptic number.

20315455566030 is an abundant number, since it is smaller than the sum of its proper divisors (32504728905882).

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

20315455566030 is a wasteful number, since it uses less digits than its factorization.

20315455566030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225727284080 (or 225727284077 counting only the distinct ones).

The product of its (nonzero) digits is 1620000, while the sum is 45.

The spelling of 20315455566030 in words is "twenty trillion, three hundred fifteen billion, four hundred fifty-five million, five hundred sixty-six thousand, thirty".