201546225664 has 48 divisors (see below), whose sum is σ = 460564650000. Its totient is φ = 86376947712.

The previous prime is 201546225623. The next prime is 201546225667. The reversal of 201546225664 is 466522645102.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 201546225664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201546225667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7015039 + ... + 7043710.

It is an arithmetic number, because the mean of its divisors is an integer number (9595096875).

Almost surely, 2^201546225664 is an apocalyptic number.

It is an amenable number.

201546225664 is an abundant number, since it is smaller than the sum of its proper divisors (259018424336).

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

201546225664 is an equidigital number, since it uses as much as digits as its factorization.

201546225664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14058778 (or 14058758 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 43.

The spelling of 201546225664 in words is "two hundred one billion, five hundred forty-six million, two hundred twenty-five thousand, six hundred sixty-four".