153664563 has 8 divisors (see below), whose sum is σ = 220646608. Its totient is φ = 94562784.

The previous prime is 153664561. The next prime is 153664601. The reversal of 153664563 is 365466351.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 153664563 - 2¹ = 153664561 is a prime.

It is a super-2 number, since 2×153664563² = 47225595843961938, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 3940117 = 153664563 / (1 + 5 + 3 + 6 + 6 + 4 + 5 + 6 + 3).

It is not an unprimeable number, because it can be changed into a prime (153664561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1970020 + ... + 1970097.

It is an arithmetic number, because the mean of its divisors is an integer number (27580826).

Almost surely, 2^153664563 is an apocalyptic number.

153664563 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

153664563 is a deficient number, since it is larger than the sum of its proper divisors (66982045).

153664563 is a wasteful number, since it uses less digits than its factorization.

153664563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3940133.

The product of its digits is 194400, while the sum is 39.

The square root of 153664563 is about 12396.1511365423. The cubic root of 153664563 is about 535.6213853180.

The spelling of 153664563 in words is "one hundred fifty-three million, six hundred sixty-four thousand, five hundred sixty-three".