181465801464 has 64 divisors (see below), whose sum is σ = 477663552000. Its totient is φ = 57290353920.

The previous prime is 181465801463. The next prime is 181465801469. The reversal of 181465801464 is 464108564181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (181465801463) 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, 1811244 + ... + 1908804.

It is an arithmetic number, because the mean of its divisors is an integer number (7463493000).

Almost surely, 2^181465801464 is an apocalyptic number.

It is an amenable number.

181465801464 is an abundant number, since it is smaller than the sum of its proper divisors (296197750536).

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

181465801464 is a wasteful number, since it uses less digits than its factorization.

181465801464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101668 (or 101664 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 48.

The spelling of 181465801464 in words is "one hundred eighty-one billion, four hundred sixty-five million, eight hundred one thousand, four hundred sixty-four".