20120773700 has 36 divisors (see below), whose sum is σ = 43675954560. Its totient is φ = 8045751840.

The previous prime is 20120773697. The next prime is 20120773721. The reversal of 20120773700 is 737702102.

It is a super-2 number, since 2×20120773700² (a number of 21 digits) contains 22 as substring.

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, 301589 + ... + 362211.

It is an arithmetic number, because the mean of its divisors is an integer number (1213220960).

Almost surely, 2^20120773700 is an apocalyptic number.

20120773700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20120773700 is an abundant number, since it is smaller than the sum of its proper divisors (23555180860).

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

20120773700 is a wasteful number, since it uses less digits than its factorization.

20120773700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63956 (or 63949 counting only the distinct ones).

The product of its (nonzero) digits is 4116, while the sum is 29.

The spelling of 20120773700 in words is "twenty billion, one hundred twenty million, seven hundred seventy-three thousand, seven hundred".