153666450 has 288 divisors, whose sum is σ = 519073920. Its totient is φ = 33264000.

The previous prime is 153666431. The next prime is 153666463. The reversal of 153666450 is 54666351.

It is a super-2 number, since 2×153666450² = 47226755711205000, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1521400 + ... + 1521500.

It is an arithmetic number, because the mean of its divisors is an integer number (1802340).

Almost surely, 2^153666450 is an apocalyptic number.

153666450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 153666450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259536960).

153666450 is an abundant number, since it is smaller than the sum of its proper divisors (365407470).

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

153666450 is a wasteful number, since it uses less digits than its factorization.

153666450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159 (or 141 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 153666450 is about 12396.2272486430. The cubic root of 153666450 is about 535.6235777849.

Subtracting from 153666450 its reverse (54666351), we obtain a palindrome (99000099).

The spelling of 153666450 in words is "one hundred fifty-three million, six hundred sixty-six thousand, four hundred fifty".