16623614246400 has 3240 divisors, whose sum is σ = 76411371156120. Its totient is φ = 3431439728640.

The previous prime is 16623614246357. The next prime is 16623614246411. The reversal of 16623614246400 is 464241632661.

16623614246400 is a `hidden beast` number, since 1 + 6 + 6 + 2 + 3 + 614 + 24 + 6 + 4 + 0 + 0 = 666.

It is a super-2 number, since 2×16623614246400² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 323 ways as a sum of consecutive naturals, for example, 56735884654 + ... + 56735884946.

Almost surely, 2^{16623614246400} is an apocalyptic number.

16623614246400 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 16623614246400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38205685578060).

16623614246400 is an abundant number, since it is smaller than the sum of its proper divisors (59787756909720).

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

16623614246400 is a wasteful number, since it uses less digits than its factorization.

16623614246400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406 (or 352 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 45.

The spelling of 16623614246400 in words is "sixteen trillion, six hundred twenty-three billion, six hundred fourteen million, two hundred forty-six thousand, four hundred".