1601506464505 has 24 divisors (see below), whose sum is σ = 2054567533824. Its totient is φ = 1197121531200.

The previous prime is 1601506464403. The next prime is 1601506464517. The reversal of 1601506464505 is 5054646051061.

It is not a de Polignac number, because 1601506464505 - 2¹⁵ = 1601506431737 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6012511 + ... + 6273220.

It is an arithmetic number, because the mean of its divisors is an integer number (85606980576).

Almost surely, 2^{1601506464505} is an apocalyptic number.

It is an amenable number.

1601506464505 is a deficient number, since it is larger than the sum of its proper divisors (453061069319).

1601506464505 is a wasteful number, since it uses less digits than its factorization.

1601506464505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12285825 (or 12285796 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 43.

The spelling of 1601506464505 in words is "one trillion, six hundred one billion, five hundred six million, four hundred sixty-four thousand, five hundred five".