16247153664 has 220 divisors, whose sum is σ = 55450184064. Its totient is φ = 4641878016.

The previous prime is 16247153653. The next prime is 16247153711. The reversal of 16247153664 is 46635174261.

16247153664 is a `hidden beast` number, since 1 + 624 + 7 + 15 + 3 + 6 + 6 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 566617 + ... + 594599.

Almost surely, 2^16247153664 is an apocalyptic number.

16247153664 is a gapful number since it is divisible by the number (14) 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 16247153664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27725092032).

16247153664 is an abundant number, since it is smaller than the sum of its proper divisors (39203030400).

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

16247153664 is an equidigital number, since it uses as much as digits as its factorization.

16247153664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28022 (or 27995 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The spelling of 16247153664 in words is "sixteen billion, two hundred forty-seven million, one hundred fifty-three thousand, six hundred sixty-four".