166466426521450 has 96 divisors (see below), whose sum is σ = 355854258780480. Its totient is φ = 57298723200000.

The previous prime is 166466426521411. The next prime is 166466426521463. The reversal of 166466426521450 is 54125624664661.

It is a super-2 number, since 2×166466426521450² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5597250 + ... + 19085650.

It is an arithmetic number, because the mean of its divisors is an integer number (3706815195630).

Almost surely, 2^{166466426521450} is an apocalyptic number.

166466426521450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166466426521450 is an abundant number, since it is smaller than the sum of its proper divisors (189387832259030).

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

166466426521450 is a wasteful number, since it uses less digits than its factorization.

166466426521450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13489624 (or 13489619 counting only the distinct ones).

The product of its (nonzero) digits is 49766400, while the sum is 58.

The spelling of 166466426521450 in words is "one hundred sixty-six trillion, four hundred sixty-six billion, four hundred twenty-six million, five hundred twenty-one thousand, four hundred fifty".