445661127164 has 24 divisors (see below), whose sum is σ = 862790818176. Its totient is φ = 199720094000.

The previous prime is 445661127161. The next prime is 445661127169. The reversal of 445661127164 is 461721166544.

It is a super-2 number, since 2×445661127164² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445661127161) 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, 71325482 + ... + 71331729.

It is an arithmetic number, because the mean of its divisors is an integer number (35949617424).

Almost surely, 2^445661127164 is an apocalyptic number.

445661127164 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

445661127164 is a deficient number, since it is larger than the sum of its proper divisors (417129691012).

445661127164 is a wasteful number, since it uses less digits than its factorization.

445661127164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142657297 (or 142657295 counting only the distinct ones).

The product of its digits is 967680, while the sum is 47.

The spelling of 445661127164 in words is "four hundred forty-five billion, six hundred sixty-one million, one hundred twenty-seven thousand, one hundred sixty-four".