166196294144580 has 384 divisors, whose sum is σ = 566802524381184. Its totient is φ = 35518926643200.

The previous prime is 166196294144537. The next prime is 166196294144599. The reversal of 166196294144580 is 85441492691661.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 8509349415 + ... + 8509368945.

It is an arithmetic number, because the mean of its divisors is an integer number (1476048240576).

Almost surely, 2^{166196294144580} is an apocalyptic number.

166196294144580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166196294144580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283401262190592).

166196294144580 is an abundant number, since it is smaller than the sum of its proper divisors (400606230236604).

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

166196294144580 is a wasteful number, since it uses less digits than its factorization.

166196294144580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27315 (or 27313 counting only the distinct ones).

The product of its (nonzero) digits is 89579520, while the sum is 66.

The spelling of 166196294144580 in words is "one hundred sixty-six trillion, one hundred ninety-six billion, two hundred ninety-four million, one hundred forty-four thousand, five hundred eighty".