20406602280600 has 72 divisors (see below), whose sum is σ = 68532172665060. Its totient is φ = 5441760607680.

The previous prime is 20406602280587. The next prime is 20406602280607. The reversal of 20406602280600 is 608220660402.

20406602280600 is a `hidden beast` number, since 2 + 0 + 40 + 6 + 6 + 0 + 2 + 2 + 8 + 0 + 600 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×20406602280600² (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 not an unprimeable number, because it can be changed into a prime (20406602280607) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5668498834 + ... + 5668502433.

Almost surely, 2^{20406602280600} is an apocalyptic number.

20406602280600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20406602280600 is an abundant number, since it is smaller than the sum of its proper divisors (48125570384460).

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

20406602280600 is a wasteful number, since it uses less digits than its factorization.

20406602280600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11337001289 (or 11337001277 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The spelling of 20406602280600 in words is "twenty trillion, four hundred six billion, six hundred two million, two hundred eighty thousand, six hundred".