1501660661149 has 16 divisors (see below), whose sum is σ = 1709601957504. Its totient is φ = 1305637819200.

The previous prime is 1501660661099. The next prime is 1501660661153. The reversal of 1501660661149 is 9411660661051.

It is not a de Polignac number, because 1501660661149 - 2²⁵ = 1501627106717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1501660661099 and 1501660661108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1501660664149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1825147 + ... + 2516839.

It is an arithmetic number, because the mean of its divisors is an integer number (106850122344).

Almost surely, 2^{1501660661149} is an apocalyptic number.

It is an amenable number.

1501660661149 is a deficient number, since it is larger than the sum of its proper divisors (207941296355).

1501660661149 is a wasteful number, since it uses less digits than its factorization.

1501660661149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700308.

The product of its (nonzero) digits is 233280, while the sum is 46.

The spelling of 1501660661149 in words is "one trillion, five hundred one billion, six hundred sixty million, six hundred sixty-one thousand, one hundred forty-nine".