20616045216300 has 108 divisors (see below), whose sum is σ = 64976864645056. Its totient is φ = 5467238467200.

The previous prime is 20616045216281. The next prime is 20616045216307. The reversal of 20616045216300 is 361254061602.

20616045216300 is a `hidden beast` number, since 2 + 0 + 6 + 1 + 604 + 5 + 2 + 16 + 30 + 0 = 666.

It is a super-2 number, since 2×20616045216300² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (20616045216307) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 63115324 + ... + 63441123.

Almost surely, 2^{20616045216300} is an apocalyptic number.

20616045216300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20616045216300 is an abundant number, since it is smaller than the sum of its proper divisors (44360819428756).

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

20616045216300 is a wasteful number, since it uses less digits than its factorization.

20616045216300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126556648 (or 126556638 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

Adding to 20616045216300 its reverse (361254061602), we get a palindrome (20977299277902).

The spelling of 20616045216300 in words is "twenty trillion, six hundred sixteen billion, forty-five million, two hundred sixteen thousand, three hundred".