1660144470288 has 80 divisors (see below), whose sum is σ = 4521259281600. Its totient is φ = 523462832640.

The previous prime is 1660144470223. The next prime is 1660144470371. The reversal of 1660144470288 is 8820744410661.

It is a super-2 number, since 2×1660144470288² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1660144470288.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 774123 + ... + 1979786.

It is an arithmetic number, because the mean of its divisors is an integer number (56515741020).

Almost surely, 2^{1660144470288} is an apocalyptic number.

It is an amenable number.

1660144470288 is an abundant number, since it is smaller than the sum of its proper divisors (2861114811312).

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

1660144470288 is a wasteful number, since it uses less digits than its factorization.

1660144470288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2754600 (or 2754594 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 51.

The spelling of 1660144470288 in words is "one trillion, six hundred sixty billion, one hundred forty-four million, four hundred seventy thousand, two hundred eighty-eight".