20674334100 has 144 divisors (see below), whose sum is σ = 72384617088. Its totient is φ = 4447580160.

The previous prime is 20674334099. The next prime is 20674334111. The reversal of 20674334100 is 143347602.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 253857 + ... + 325256.

It is an arithmetic number, because the mean of its divisors is an integer number (502670952).

Almost surely, 2^20674334100 is an apocalyptic number.

20674334100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20674334100 is an abundant number, since it is smaller than the sum of its proper divisors (51710282988).

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

20674334100 is a wasteful number, since it uses less digits than its factorization.

20674334100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579154 (or 579147 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 30.

The spelling of 20674334100 in words is "twenty billion, six hundred seventy-four million, three hundred thirty-four thousand, one hundred".