20079705600 has 600 divisors, whose sum is σ = 75425438088. Its totient is φ = 5275238400.

The previous prime is 20079705593. The next prime is 20079705619. The reversal of 20079705600 is 650797002.

20079705600 is a `hidden beast` number, since 2 + 0 + 0 + 7 + 97 + 0 + 560 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (600).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 110937510 + ... + 110937690.

Almost surely, 2^20079705600 is an apocalyptic number.

20079705600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20079705600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37712719044).

20079705600 is an abundant number, since it is smaller than the sum of its proper divisors (55345732488).

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

20079705600 is a wasteful number, since it uses less digits than its factorization.

20079705600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The spelling of 20079705600 in words is "twenty billion, seventy-nine million, seven hundred five thousand, six hundred".