1601551660036 has 6 divisors (see below), whose sum is σ = 2802715405070. Its totient is φ = 800775830016.

The previous prime is 1601551660031. The next prime is 1601551660073. The reversal of 1601551660036 is 6300661551061.

It can be written as a sum of positive squares in only one way, i.e., 1390819248900 + 210732411136 = 1179330^2 + 459056^2 .

It is not an unprimeable number, because it can be changed into a prime (1601551660031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200193957501 + ... + 200193957508.

Almost surely, 2^{1601551660036} is an apocalyptic number.

It is an amenable number.

1601551660036 is a deficient number, since it is larger than the sum of its proper divisors (1201163745034).

1601551660036 is a wasteful number, since it uses less digits than its factorization.

1601551660036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400387915013 (or 400387915011 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 40.

The spelling of 1601551660036 in words is "one trillion, six hundred one billion, five hundred fifty-one million, six hundred sixty thousand, thirty-six".