6631161402 has 16 divisors (see below), whose sum is σ = 13719644640. Its totient is φ = 2134166832.

The previous prime is 6631161401. The next prime is 6631161403. The reversal of 6631161402 is 2041611366.

It is an interprime number because it is at equal distance from previous prime (6631161401) and next prime (6631161403).

It is a self number, because there is not a number n which added to its sum of digits gives 6631161402.

It is not an unprimeable number, because it can be changed into a prime (6631161401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19054888 + ... + 19055235.

It is an arithmetic number, because the mean of its divisors is an integer number (857477790).

Almost surely, 2^6631161402 is an apocalyptic number.

6631161402 is an abundant number, since it is smaller than the sum of its proper divisors (7088483238).

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

6631161402 is a wasteful number, since it uses less digits than its factorization.

6631161402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38110157.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 6631161402 is about 81431.9433760487. The cubic root of 6631161402 is about 1878.7249353609.

Adding to 6631161402 its reverse (2041611366), we get a palindrome (8672772768).

The spelling of 6631161402 in words is "six billion, six hundred thirty-one million, one hundred sixty-one thousand, four hundred two".