20667241100 has 72 divisors (see below), whose sum is σ = 51052232448. Its totient is φ = 7188596800.

The previous prime is 20667241097. The next prime is 20667241109. The reversal of 20667241100 is 114276602.

It is not an unprimeable number, because it can be changed into a prime (20667241109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 383144 + ... + 433743.

It is an arithmetic number, because the mean of its divisors is an integer number (709058784).

Almost surely, 2^20667241100 is an apocalyptic number.

20667241100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20667241100 is an abundant number, since it is smaller than the sum of its proper divisors (30384991348).

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

20667241100 is a wasteful number, since it uses less digits than its factorization.

20667241100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816935 (or 816928 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The spelling of 20667241100 in words is "twenty billion, six hundred sixty-seven million, two hundred forty-one thousand, one hundred".