4424640167640 has 128 divisors (see below), whose sum is σ = 16549303518720. Its totient is φ = 919405747200.

The previous prime is 4424640167639. The next prime is 4424640167657. The reversal of 4424640167640 is 467610464244.

It is a super-2 number, since 2×4424640167640² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4424640167640.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 239419341 + ... + 239437820.

It is an arithmetic number, because the mean of its divisors is an integer number (129291433740).

Almost surely, 2^{4424640167640} is an apocalyptic number.

4424640167640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4424640167640 is an abundant number, since it is smaller than the sum of its proper divisors (12124663351080).

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

4424640167640 is a wasteful number, since it uses less digits than its factorization.

4424640167640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478857193 (or 478857189 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 48.

The spelling of 4424640167640 in words is "four trillion, four hundred twenty-four billion, six hundred forty million, one hundred sixty-seven thousand, six hundred forty".