20654102298942 has 192 divisors, whose sum is σ = 53515342233600. Its totient is φ = 5632849797120.

The previous prime is 20654102298923. The next prime is 20654102298967. The reversal of 20654102298942 is 24989220145602.

20654102298942 is a `hidden beast` number, since 2 + 0 + 6 + 541 + 0 + 2 + 2 + 9 + 8 + 94 + 2 = 666.

It is a super-2 number, since 2×20654102298942² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 311317998 + ... + 311384334.

It is an arithmetic number, because the mean of its divisors is an integer number (278725740800).

Almost surely, 2^{20654102298942} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20654102298942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26757671116800).

20654102298942 is an abundant number, since it is smaller than the sum of its proper divisors (32861239934658).

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

20654102298942 is a wasteful number, since it uses less digits than its factorization.

20654102298942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67471 (or 67468 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The spelling of 20654102298942 in words is "twenty trillion, six hundred fifty-four billion, one hundred two million, two hundred ninety-eight thousand, nine hundred forty-two".