166401303562 has 24 divisors (see below), whose sum is σ = 270303479136. Its totient is φ = 76793657616.

The previous prime is 166401303547. The next prime is 166401303571. The reversal of 166401303562 is 265303104661.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 6919363 + ... + 6943369.

It is an arithmetic number, because the mean of its divisors is an integer number (11262644964).

Almost surely, 2^166401303562 is an apocalyptic number.

166401303562 is a deficient number, since it is larger than the sum of its proper divisors (103902175574).

166401303562 is a wasteful number, since it uses less digits than its factorization.

166401303562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44542 (or 44529 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 166401303562 in words is "one hundred sixty-six billion, four hundred one million, three hundred three thousand, five hundred sixty-two".