1642763166 has 16 divisors (see below), whose sum is σ = 3584210688. Its totient is φ = 497807000.

The previous prime is 1642763153. The next prime is 1642763197. The reversal of 1642763166 is 6613672461.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12445110 + ... + 12445241.

It is an arithmetic number, because the mean of its divisors is an integer number (224013168).

Almost surely, 2^1642763166 is an apocalyptic number.

1642763166 is an abundant number, since it is smaller than the sum of its proper divisors (1941447522).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1642763166 is a wasteful number, since it uses less digits than its factorization.

1642763166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24890367.

The product of its digits is 217728, while the sum is 42.

The square root of 1642763166 is about 40531.0148651622. The cubic root of 1642763166 is about 1179.9356390253.

The spelling of 1642763166 in words is "one billion, six hundred forty-two million, seven hundred sixty-three thousand, one hundred sixty-six".