349321665906 has 64 divisors (see below), whose sum is σ = 780023312640. Its totient is φ = 115878533760.

The previous prime is 349321665899. The next prime is 349321665911. The reversal of 349321665906 is 609566123943.

349321665906 is a `hidden beast` number, since 3 + 4 + 9 + 32 + 16 + 6 + 590 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14374486 + ... + 14398766.

It is an arithmetic number, because the mean of its divisors is an integer number (12187864260).

Almost surely, 2^349321665906 is an apocalyptic number.

349321665906 is an abundant number, since it is smaller than the sum of its proper divisors (430701646734).

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

349321665906 is a wasteful number, since it uses less digits than its factorization.

349321665906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25568 (or 25562 counting only the distinct ones).

The product of its (nonzero) digits is 6298560, while the sum is 54.

The spelling of 349321665906 in words is "three hundred forty-nine billion, three hundred twenty-one million, six hundred sixty-five thousand, nine hundred six".