20214155523440 has 80 divisors (see below), whose sum is σ = 48631234053600. Its totient is φ = 7808886091776.

The previous prime is 20214155523391. The next prime is 20214155523479. The reversal of 20214155523440 is 4432555141202.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-3 number, since 3×20214155523440³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 20214155523394 and 20214155523403.

It is a congruent number.

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, 32706245 + ... + 33318564.

It is an arithmetic number, because the mean of its divisors is an integer number (607890425670).

Almost surely, 2^{20214155523440} is an apocalyptic number.

20214155523440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20214155523440 is an abundant number, since it is smaller than the sum of its proper divisors (28417078530160).

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

20214155523440 is a wasteful number, since it uses less digits than its factorization.

20214155523440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66024954 (or 66024948 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 38.

The spelling of 20214155523440 in words is "twenty trillion, two hundred fourteen billion, one hundred fifty-five million, five hundred twenty-three thousand, four hundred forty".