1501160666 has 4 divisors (see below), whose sum is σ = 2251741002. Its totient is φ = 750580332.

The previous prime is 1501160653. The next prime is 1501160693. The reversal of 1501160666 is 6660611051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6660611051 = 31 ⋅214858421.

It can be written as a sum of positive squares in only one way, i.e., 1491581641 + 9579025 = 38621^2 + 3095^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 375290165 + ... + 375290168.

Almost surely, 2^1501160666 is an apocalyptic number.

1501160666 is a deficient number, since it is larger than the sum of its proper divisors (750580336).

1501160666 is an equidigital number, since it uses as much as digits as its factorization.

1501160666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750580335.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 1501160666 is about 38744.8146982277. The cubic root of 1501160666 is about 1145.0094177445.

The spelling of 1501160666 in words is "one billion, five hundred one million, one hundred sixty thousand, six hundred sixty-six".