1501660661120 has 32 divisors (see below), whose sum is σ = 3589907519520. Its totient is φ = 600664264192.

The previous prime is 1501660661099. The next prime is 1501660661153. The reversal of 1501660661120 is 211660661051.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1173171752 + ... + 1173173031.

It is an arithmetic number, because the mean of its divisors is an integer number (112184609985).

Almost surely, 2^{1501660661120} is an apocalyptic number.

1501660661120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1501660661120 is an abundant number, since it is smaller than the sum of its proper divisors (2088246858400).

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

1501660661120 is an equidigital number, since it uses as much as digits as its factorization.

1501660661120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2346344802 (or 2346344790 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 35.

The spelling of 1501660661120 in words is "one trillion, five hundred one billion, six hundred sixty million, six hundred sixty-one thousand, one hundred twenty".