1660757145 has 8 divisors (see below), whose sum is σ = 2657211456. Its totient is φ = 885737136.

The previous prime is 1660757107. The next prime is 1660757191. The reversal of 1660757145 is 5417570661.

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

It is not a de Polignac number, because 1660757145 - 2¹⁰ = 1660756121 is a prime.

It is a super-2 number, since 2×1660757145² = 5516228589337102050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1660757097 and 1660757106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55358557 + ... + 55358586.

It is an arithmetic number, because the mean of its divisors is an integer number (332151432).

Almost surely, 2^1660757145 is an apocalyptic number.

1660757145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1660757145 is a deficient number, since it is larger than the sum of its proper divisors (996454311).

1660757145 is a wasteful number, since it uses less digits than its factorization.

1660757145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110717151.

The product of its (nonzero) digits is 176400, while the sum is 42.

The square root of 1660757145 is about 40752.3882122263. The cubic root of 1660757145 is about 1184.2281394844.

The spelling of 1660757145 in words is "one billion, six hundred sixty million, seven hundred fifty-seven thousand, one hundred forty-five".