6691205162902 has 24 divisors (see below), whose sum is σ = 10953836188416. Its totient is φ = 3063931599456.

The previous prime is 6691205162879. The next prime is 6691205162903. The reversal of 6691205162902 is 2092615021966.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6691205162903) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77895913 + ... + 77981764.

It is an arithmetic number, because the mean of its divisors is an integer number (456409841184).

Almost surely, 2^{6691205162902} is an apocalyptic number.

6691205162902 is a deficient number, since it is larger than the sum of its proper divisors (4262631025514).

6691205162902 is a wasteful number, since it uses less digits than its factorization.

6691205162902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155877832 (or 155877819 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 49.

The spelling of 6691205162902 in words is "six trillion, six hundred ninety-one billion, two hundred five million, one hundred sixty-two thousand, nine hundred two".