20307775746000 has 80 divisors (see below), whose sum is σ = 65472269024448. Its totient is φ = 5415406864000.

The previous prime is 20307775745993. The next prime is 20307775746077. The reversal of 20307775746000 is 64757770302.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1692308646 + ... + 1692320645.

Almost surely, 2^{20307775746000} is an apocalyptic number.

20307775746000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20307775746000 is an abundant number, since it is smaller than the sum of its proper divisors (45164493278448).

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

20307775746000 is a wasteful number, since it uses less digits than its factorization.

20307775746000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3384629317 (or 3384629301 counting only the distinct ones).

The product of its (nonzero) digits is 1728720, while the sum is 48.

It can be divided in two parts, 2030777 and 5746000, that added together give a palindrome (7776777).

The spelling of 20307775746000 in words is "twenty trillion, three hundred seven billion, seven hundred seventy-five million, seven hundred forty-six thousand".