164521203116610 has 32 divisors (see below), whose sum is σ = 394853830836480. Its totient is φ = 43871993791488.

The previous prime is 164521203116591. The next prime is 164521203116629. The reversal of 164521203116610 is 16611302125461.

It is an interprime number because it is at equal distance from previous prime (164521203116591) and next prime (164521203116629).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16334890 + ... + 24410469.

It is an arithmetic number, because the mean of its divisors is an integer number (12339182213640).

Almost surely, 2^{164521203116610} is an apocalyptic number.

164521203116610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164521203116610 is an abundant number, since it is smaller than the sum of its proper divisors (230332627719870).

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

164521203116610 is a wasteful number, since it uses less digits than its factorization.

164521203116610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40879962.

The product of its (nonzero) digits is 51840, while the sum is 39.

The spelling of 164521203116610 in words is "one hundred sixty-four trillion, five hundred twenty-one billion, two hundred three million, one hundred sixteen thousand, six hundred ten".