20266012641600 has 336 divisors, whose sum is σ = 80593225899840. Its totient is φ = 4912972646400.

The previous prime is 20266012641593. The next prime is 20266012641613. The reversal of 20266012641600 is 614621066202.

20266012641600 is a `hidden beast` number, since 2 + 0 + 2 + 6 + 6 + 0 + 1 + 2 + 6 + 41 + 600 = 666.

It is a super-2 number, since 2×20266012641600² (a number of 27 digits) contains 22 as substring.

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 47 ways as a sum of consecutive naturals, for example, 20848467 + ... + 21798866.

Almost surely, 2^{20266012641600} is an apocalyptic number.

20266012641600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20266012641600 is an abundant number, since it is smaller than the sum of its proper divisors (60327213258240).

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

20266012641600 is a wasteful number, since it uses less digits than its factorization.

20266012641600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42647375 (or 42647354 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The spelling of 20266012641600 in words is "twenty trillion, two hundred sixty-six billion, twelve million, six hundred forty-one thousand, six hundred".