20694956080140 has 120 divisors (see below), whose sum is σ = 66021197291280. Its totient is φ = 5425118404992.

The previous prime is 20694956080091. The next prime is 20694956080157. The reversal of 20694956080140 is 4108065949602.

20694956080140 is a `hidden beast` number, since 2 + 0 + 6 + 9 + 495 + 6 + 0 + 8 + 0 + 140 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 108164287 + ... + 108355446.

It is an arithmetic number, because the mean of its divisors is an integer number (550176644094).

Almost surely, 2^{20694956080140} is an apocalyptic number.

20694956080140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20694956080140 is an abundant number, since it is smaller than the sum of its proper divisors (45326241211140).

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

20694956080140 is a wasteful number, since it uses less digits than its factorization.

20694956080140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216519813 (or 216519802 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 54.

The spelling of 20694956080140 in words is "twenty trillion, six hundred ninety-four billion, nine hundred fifty-six million, eighty thousand, one hundred forty".