451525333164 has 48 divisors (see below), whose sum is σ = 1079563107840. Its totient is φ = 146795679360.

The previous prime is 451525333163. The next prime is 451525333241. The reversal of 451525333164 is 461333525154.

It is a happy number.

It is a super-2 number, since 2×451525333164² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (451525333163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1622097 + ... + 1879959.

It is an arithmetic number, because the mean of its divisors is an integer number (22490898080).

Almost surely, 2^451525333164 is an apocalyptic number.

It is an amenable number.

451525333164 is an abundant number, since it is smaller than the sum of its proper divisors (628037774676).

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

451525333164 is a wasteful number, since it uses less digits than its factorization.

451525333164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261470 (or 261468 counting only the distinct ones).

The product of its digits is 648000, while the sum is 42.

The spelling of 451525333164 in words is "four hundred fifty-one billion, five hundred twenty-five million, three hundred thirty-three thousand, one hundred sixty-four".