20308930925544 has 64 divisors (see below), whose sum is σ = 56666673369600. Its totient is φ = 6739286479488.

The previous prime is 20308930925513. The next prime is 20308930925599. The reversal of 20308930925544 is 44552903980302.

20308930925544 is a `hidden beast` number, since 2 + 0 + 3 + 0 + 8 + 9 + 3 + 0 + 92 + 5 + 544 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210765349 + ... + 210861684.

It is an arithmetic number, because the mean of its divisors is an integer number (885416771400).

Almost surely, 2^{20308930925544} is an apocalyptic number.

20308930925544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20308930925544 is an abundant number, since it is smaller than the sum of its proper divisors (36357742444056).

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

20308930925544 is a wasteful number, since it uses less digits than its factorization.

20308930925544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421627271 (or 421627261 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 54.

The spelling of 20308930925544 in words is "twenty trillion, three hundred eight billion, nine hundred thirty million, nine hundred twenty-five thousand, five hundred forty-four".