660457141 has 8 divisors (see below), whose sum is σ = 681154560. Its totient is φ = 639909648.

The previous prime is 660457129. The next prime is 660457153. The reversal of 660457141 is 141754066.

It is an interprime number because it is at equal distance from previous prime (660457129) and next prime (660457153).

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

It is a cyclic number.

It is not a de Polignac number, because 660457141 - 2⁷ = 660457013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 660457097 and 660457106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660457241) 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, 28501 + ... + 46186.

It is an arithmetic number, because the mean of its divisors is an integer number (85144320).

Almost surely, 2^660457141 is an apocalyptic number.

It is an amenable number.

660457141 is a deficient number, since it is larger than the sum of its proper divisors (20697419).

660457141 is a wasteful number, since it uses less digits than its factorization.

660457141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74963.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 660457141 is about 25699.3607118932. The cubic root of 660457141 is about 870.8597398055.

The spelling of 660457141 in words is "six hundred sixty million, four hundred fifty-seven thousand, one hundred forty-one".