18429456809016 has 240 divisors, whose sum is σ = 59819571896040. Its totient is φ = 5256172477440.

The previous prime is 18429456808969. The next prime is 18429456809041. The reversal of 18429456809016 is 61090865492481.

18429456809016 is a `hidden beast` number, since 1 + 8 + 4 + 2 + 9 + 456 + 80 + 90 + 16 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 2413195 + ... + 6533178.

Almost surely, 2^{18429456809016} is an apocalyptic number.

It is an amenable number.

18429456809016 is an abundant number, since it is smaller than the sum of its proper divisors (41390115087024).

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

18429456809016 is a wasteful number, since it uses less digits than its factorization.

18429456809016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8946436 (or 8946406 counting only the distinct ones).

The product of its (nonzero) digits is 29859840, while the sum is 63.

The spelling of 18429456809016 in words is "eighteen trillion, four hundred twenty-nine billion, four hundred fifty-six million, eight hundred nine thousand, sixteen".