20672266100 has 36 divisors (see below), whose sum is σ = 44919354144. Its totient is φ = 8257747680.

The previous prime is 20672266073. The next prime is 20672266157. The reversal of 20672266100 is 166227602.

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, 64814 + ... + 213413.

Almost surely, 2^20672266100 is an apocalyptic number.

20672266100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20672266100 is an abundant number, since it is smaller than the sum of its proper divisors (24247088044).

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

20672266100 is a wasteful number, since it uses less digits than its factorization.

20672266100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278984 (or 278977 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The spelling of 20672266100 in words is "twenty billion, six hundred seventy-two million, two hundred sixty-six thousand, one hundred".