16199157853440 has 432 divisors, whose sum is σ = 57616796310528. Its totient is φ = 4199038009344.

The previous prime is 16199157853409. The next prime is 16199157853519. The reversal of 16199157853440 is 4435875199161.

16199157853440 is a `hidden beast` number, since 1 + 6 + 1 + 9 + 9 + 1 + 57 + 8 + 534 + 40 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 463305399 + ... + 463340361.

Almost surely, 2^{16199157853440} is an apocalyptic number.

16199157853440 is a gapful number since it is divisible by the number (10) 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 16199157853440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28808398155264).

16199157853440 is an abundant number, since it is smaller than the sum of its proper divisors (41417638457088).

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

16199157853440 is a wasteful number, since it uses less digits than its factorization.

16199157853440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36114 (or 36097 counting only the distinct ones).

The product of its (nonzero) digits is 32659200, while the sum is 63.

The spelling of 16199157853440 in words is "sixteen trillion, one hundred ninety-nine billion, one hundred fifty-seven million, eight hundred fifty-three thousand, four hundred forty".