4400161502546 has 32 divisors (see below), whose sum is σ = 6635134990848. Its totient is φ = 2188486460160.

The previous prime is 4400161502543. The next prime is 4400161502573. The reversal of 4400161502546 is 6452051610044.

It is a happy number.

It is a super-2 number, since 2×4400161502546² (a number of 26 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4400161502543) 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, 569743841 + ... + 569751563.

It is an arithmetic number, because the mean of its divisors is an integer number (207347968464).

Almost surely, 2^{4400161502546} is an apocalyptic number.

4400161502546 is a deficient number, since it is larger than the sum of its proper divisors (2234973488302).

4400161502546 is a wasteful number, since it uses less digits than its factorization.

4400161502546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9906.

The product of its (nonzero) digits is 115200, while the sum is 38.

The spelling of 4400161502546 in words is "four trillion, four hundred billion, one hundred sixty-one million, five hundred two thousand, five hundred forty-six".