1601500506566 has 16 divisors (see below), whose sum is σ = 2421911320128. Its totient is φ = 794216745000.

The previous prime is 1601500506527. The next prime is 1601500506583. The reversal of 1601500506566 is 6656050051061.

It is a super-2 number, since 2×1601500506566² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4842560 + ... + 5162691.

It is an arithmetic number, because the mean of its divisors is an integer number (151369457508).

Almost surely, 2^{1601500506566} is an apocalyptic number.

1601500506566 is a deficient number, since it is larger than the sum of its proper divisors (820410813562).

1601500506566 is a wasteful number, since it uses less digits than its factorization.

1601500506566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10005907.

The product of its (nonzero) digits is 162000, while the sum is 41.

The spelling of 1601500506566 in words is "one trillion, six hundred one billion, five hundred million, five hundred six thousand, five hundred sixty-six".