630151766 has 4 divisors (see below), whose sum is σ = 945227652. Its totient is φ = 315075882.

The previous prime is 630151763. The next prime is 630151771. The reversal of 630151766 is 667151036.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630151763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157537940 + ... + 157537943.

It is an arithmetic number, because the mean of its divisors is an integer number (236306913).

Almost surely, 2^630151766 is an apocalyptic number.

630151766 is a deficient number, since it is larger than the sum of its proper divisors (315075886).

630151766 is a wasteful number, since it uses less digits than its factorization.

630151766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315075885.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 630151766 is about 25102.8238650555. The cubic root of 630151766 is about 857.3307203805.

The spelling of 630151766 in words is "six hundred thirty million, one hundred fifty-one thousand, seven hundred sixty-six".