1660275221541 has 8 divisors (see below), whose sum is σ = 2285109982464. Its totient is φ = 1071145304160.

The previous prime is 1660275221461. The next prime is 1660275221573. The reversal of 1660275221541 is 1451225720661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1660275221541 - 2⁷ = 1660275221413 is a prime.

It is a super-2 number, since 2×1660275221541² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1660275221493 and 1660275221502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1660275221141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8926210776 + ... + 8926210961.

It is an arithmetic number, because the mean of its divisors is an integer number (285638747808).

Almost surely, 2^{1660275221541} is an apocalyptic number.

It is an amenable number.

1660275221541 is a deficient number, since it is larger than the sum of its proper divisors (624834760923).

1660275221541 is a wasteful number, since it uses less digits than its factorization.

1660275221541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17852421771.

The product of its (nonzero) digits is 201600, while the sum is 42.

The spelling of 1660275221541 in words is "one trillion, six hundred sixty billion, two hundred seventy-five million, two hundred twenty-one thousand, five hundred forty-one".