6691236402 has 8 divisors (see below), whose sum is σ = 13382472816. Its totient is φ = 2230412132.

The previous prime is 6691236401. The next prime is 6691236413. The reversal of 6691236402 is 2046321966.

It is a sphenic number, since it is the product of 3 distinct primes.

6691236402 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (6691236401) 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, 557603028 + ... + 557603039.

It is an arithmetic number, because the mean of its divisors is an integer number (1672809102).

Almost surely, 2^6691236402 is an apocalyptic number.

6691236402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6691236402 is a wasteful number, since it uses less digits than its factorization.

6691236402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115206072.

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 6691236402 is about 81799.9780073320. The cubic root of 6691236402 is about 1884.3813237953.

The spelling of 6691236402 in words is "six billion, six hundred ninety-one million, two hundred thirty-six thousand, four hundred two".