1162001611 has 4 divisors (see below), whose sum is σ = 1163435224. Its totient is φ = 1160568000.

The previous prime is 1162001587. The next prime is 1162001651. The reversal of 1162001611 is 1161002611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1161002611 = 1553 ⋅747587.

It is a cyclic number.

It is not a de Polignac number, because 1162001611 - 2⁵ = 1162001579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1162001651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 715590 + ... + 717211.

It is an arithmetic number, because the mean of its divisors is an integer number (290858806).

Almost surely, 2^1162001611 is an apocalyptic number.

1162001611 is a deficient number, since it is larger than the sum of its proper divisors (1433613).

1162001611 is an equidigital number, since it uses as much as digits as its factorization.

1162001611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1433612.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 1162001611 is about 34088.1447280429. The cubic root of 1162001611 is about 1051.3215743105.

The spelling of 1162001611 in words is "one billion, one hundred sixty-two million, one thousand, six hundred eleven".