166210000550 has 48 divisors (see below), whose sum is σ = 345098394432. Its totient is φ = 59034410400.

The previous prime is 166210000547. The next prime is 166210000553. The reversal of 166210000550 is 55000012661.

It is an interprime number because it is at equal distance from previous prime (166210000547) and next prime (166210000553).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166210000553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3490304 + ... + 3537603.

It is an arithmetic number, because the mean of its divisors is an integer number (7189549884).

Almost surely, 2^166210000550 is an apocalyptic number.

166210000550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166210000550 is an abundant number, since it is smaller than the sum of its proper divisors (178888393882).

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

166210000550 is a wasteful number, since it uses less digits than its factorization.

166210000550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7027973 (or 7027968 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The spelling of 166210000550 in words is "one hundred sixty-six billion, two hundred ten million, five hundred fifty", and thus it is an aban number.