161972102264 has 32 divisors (see below), whose sum is σ = 347099165280. Its totient is φ = 69413397504.

The previous prime is 161972102263. The next prime is 161972102269. The reversal of 161972102264 is 462201279161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161972102263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1459424 + ... + 1566480.

It is an arithmetic number, because the mean of its divisors is an integer number (10846848915).

Almost surely, 2^161972102264 is an apocalyptic number.

161972102264 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

161972102264 is an abundant number, since it is smaller than the sum of its proper divisors (185127063016).

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

161972102264 is a wasteful number, since it uses less digits than its factorization.

161972102264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134087 (or 134083 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The spelling of 161972102264 in words is "one hundred sixty-one billion, nine hundred seventy-two million, one hundred two thousand, two hundred sixty-four".