20297862723600 has 1620 divisors, whose sum is σ = 94807930810320. Its totient is φ = 3995671680000.

The previous prime is 20297862723563. The next prime is 20297862723613. The reversal of 20297862723600 is 632726879202.

20297862723600 is a `hidden beast` number, since 2 + 0 + 2 + 9 + 7 + 8 + 6 + 2 + 7 + 23 + 600 = 666.

It is a super-2 number, since 2×20297862723600² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 323 ways as a sum of consecutive naturals, for example, 405518575 + ... + 405568625.

Almost surely, 2^{20297862723600} is an apocalyptic number.

20297862723600 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 20297862723600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47403965405160).

20297862723600 is an abundant number, since it is smaller than the sum of its proper divisors (74510068086720).

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

20297862723600 is a wasteful number, since it uses less digits than its factorization.

20297862723600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50130 (or 50098 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 54.

The spelling of 20297862723600 in words is "twenty trillion, two hundred ninety-seven billion, eight hundred sixty-two million, seven hundred twenty-three thousand, six hundred".