3662081771 has 4 divisors (see below), whose sum is σ = 3761056992. Its totient is φ = 3563106552.

The previous prime is 3662081743. The next prime is 3662081777. The reversal of 3662081771 is 1771802663.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3662081771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3662081777) 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, 49487555 + ... + 49487628.

It is an arithmetic number, because the mean of its divisors is an integer number (940264248).

Almost surely, 2^3662081771 is an apocalyptic number.

3662081771 is a deficient number, since it is larger than the sum of its proper divisors (98975221).

3662081771 is an equidigital number, since it uses as much as digits as its factorization.

3662081771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98975220.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 3662081771 is about 60515.1367097522. The cubic root of 3662081771 is about 1541.3786736038.

The spelling of 3662081771 in words is "three billion, six hundred sixty-two million, eighty-one thousand, seven hundred seventy-one".