16001611550660 has 48 divisors (see below), whose sum is σ = 33647496422400. Its totient is φ = 6392244528384.

The previous prime is 16001611550651. The next prime is 16001611550663. The reversal of 16001611550660 is 6605511610061.

It is not an unprimeable number, because it can be changed into a prime (16001611550663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121963976 + ... + 122095104.

It is an arithmetic number, because the mean of its divisors is an integer number (700989508800).

Almost surely, 2^{16001611550660} is an apocalyptic number.

16001611550660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16001611550660 is an abundant number, since it is smaller than the sum of its proper divisors (17645884871740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16001611550660 is a wasteful number, since it uses less digits than its factorization.

16001611550660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139100 (or 139098 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 38.

The spelling of 16001611550660 in words is "sixteen trillion, one billion, six hundred eleven million, five hundred fifty thousand, six hundred sixty".