1601043145505 has 32 divisors (see below), whose sum is σ = 1987437841920. Its totient is φ = 1237242504960.

The previous prime is 1601043145501. The next prime is 1601043145553. The reversal of 1601043145505 is 5055413401061.

It is not a de Polignac number, because 1601043145505 - 2² = 1601043145501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1601043145501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14580467 + ... + 14689863.

It is an arithmetic number, because the mean of its divisors is an integer number (62107432560).

Almost surely, 2^{1601043145505} is an apocalyptic number.

It is an amenable number.

1601043145505 is a deficient number, since it is larger than the sum of its proper divisors (386394696415).

1601043145505 is a wasteful number, since it uses less digits than its factorization.

1601043145505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110009.

The product of its (nonzero) digits is 36000, while the sum is 35.

Adding to 1601043145505 its reverse (5055413401061), we get a palindrome (6656456546566).

The spelling of 1601043145505 in words is "one trillion, six hundred one billion, forty-three million, one hundred forty-five thousand, five hundred five".