201451747164 has 24 divisors (see below), whose sum is σ = 476004130560. Its totient is φ = 66300574704.

The previous prime is 201451747117. The next prime is 201451747169. The reversal of 201451747164 is 461747154102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201451747169) 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, 106249974 + ... + 106251869.

It is an arithmetic number, because the mean of its divisors is an integer number (19833505440).

Almost surely, 2^201451747164 is an apocalyptic number.

It is an amenable number.

201451747164 is an abundant number, since it is smaller than the sum of its proper divisors (274552383396).

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

201451747164 is a wasteful number, since it uses less digits than its factorization.

201451747164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212501929 (or 212501927 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 42.

The spelling of 201451747164 in words is "two hundred one billion, four hundred fifty-one million, seven hundred forty-seven thousand, one hundred sixty-four".