18818901055152 has 280 divisors, whose sum is σ = 59654439617040. Its totient is φ = 5701047805440.

The previous prime is 18818901055127. The next prime is 18818901055177. The reversal of 18818901055152 is 25155010981881.

It is a happy number.

18818901055152 is a `hidden beast` number, since 1 + 8 + 8 + 1 + 89 + 0 + 1 + 0 + 551 + 5 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (18818901055127) and next prime (18818901055177).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 487150974 + ... + 487189602.

Almost surely, 2^{18818901055152} is an apocalyptic number.

18818901055152 is a gapful number since it is divisible by the number (12) 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 18818901055152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29827219808520).

18818901055152 is an abundant number, since it is smaller than the sum of its proper divisors (40835538561888).

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

18818901055152 is a wasteful number, since it uses less digits than its factorization.

18818901055152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42463 (or 42442 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 54.

The spelling of 18818901055152 in words is "eighteen trillion, eight hundred eighteen billion, nine hundred one million, fifty-five thousand, one hundred fifty-two".