401232242605665 has 64 divisors (see below), whose sum is σ = 659480317526016. Its totient is φ = 208222137107712.

The previous prime is 401232242605643. The next prime is 401232242605687. The reversal of 401232242605665 is 566506242232104.

It is an interprime number because it is at equal distance from previous prime (401232242605643) and next prime (401232242605687).

It is not a de Polignac number, because 401232242605665 - 2²¹ = 401232240508513 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 270553474 + ... + 272032436.

It is an arithmetic number, because the mean of its divisors is an integer number (10304379961344).

Almost surely, 2^{401232242605665} is an apocalyptic number.

It is an amenable number.

401232242605665 is a deficient number, since it is larger than the sum of its proper divisors (258248074920351).

401232242605665 is a wasteful number, since it uses less digits than its factorization.

401232242605665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481838.

The product of its (nonzero) digits is 4147200, while the sum is 48.

Adding to 401232242605665 its reverse (566506242232104), we get a palindrome (967738484837769).

The spelling of 401232242605665 in words is "four hundred one trillion, two hundred thirty-two billion, two hundred forty-two million, six hundred five thousand, six hundred sixty-five".