20892990200544 has 1440 divisors, whose sum is σ = 80045844012288. Its totient is φ = 5192924774400.

The previous prime is 20892990200531. The next prime is 20892990200561. The reversal of 20892990200544 is 44500209929802.

It is a happy number.

20892990200544 is a `hidden beast` number, since 2 + 0 + 8 + 9 + 2 + 9 + 90 + 2 + 0 + 0 + 544 = 666.

It is a super-2 number, since 2×20892990200544² (a number of 27 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 18604621167 + ... + 18604622289.

Almost surely, 2^{20892990200544} is an apocalyptic number.

20892990200544 is a gapful number since it is divisible by the number (24) 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 20892990200544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40022922006144).

20892990200544 is an abundant number, since it is smaller than the sum of its proper divisors (59152853811744).

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

20892990200544 is a wasteful number, since it uses less digits than its factorization.

20892990200544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1322 (or 1274 counting only the distinct ones).

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

The spelling of 20892990200544 in words is "twenty trillion, eight hundred ninety-two billion, nine hundred ninety million, two hundred thousand, five hundred forty-four".