201263664 has 40 divisors (see below), whose sum is σ = 594208000. Its totient is φ = 57503808.

The previous prime is 201263659. The next prime is 201263669. The reversal of 201263664 is 466362102.

It is an interprime number because it is at equal distance from previous prime (201263659) and next prime (201263669).

It is not an unprimeable number, because it can be changed into a prime (201263669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299164 + ... + 299835.

It is an arithmetic number, because the mean of its divisors is an integer number (14855200).

Almost surely, 2^201263664 is an apocalyptic number.

201263664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

201263664 is an abundant number, since it is smaller than the sum of its proper divisors (392944336).

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

201263664 is a wasteful number, since it uses less digits than its factorization.

201263664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599017 (or 599011 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 201263664 is about 14186.7425436567. The cubic root of 201263664 is about 586.0326213557.

The spelling of 201263664 in words is "two hundred one million, two hundred sixty-three thousand, six hundred sixty-four".