20000547660 has 48 divisors (see below), whose sum is σ = 56044148832. Its totient is φ = 5329420800.

The previous prime is 20000547641. The next prime is 20000547701. The reversal of 20000547660 is 6674500002.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46911 + ... + 205430.

It is an arithmetic number, because the mean of its divisors is an integer number (1167586434).

Almost surely, 2^20000547660 is an apocalyptic number.

20000547660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20000547660 is an abundant number, since it is smaller than the sum of its proper divisors (36043601172).

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

20000547660 is a wasteful number, since it uses less digits than its factorization.

20000547660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253674 (or 253672 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The spelling of 20000547660 in words is "twenty billion, five hundred forty-seven thousand, six hundred sixty".