166195096742 has 16 divisors (see below), whose sum is σ = 251106670080. Its totient is φ = 82492971528.

The previous prime is 166195096723. The next prime is 166195096747. The reversal of 166195096742 is 247690591661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166195096747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6538943 + ... + 6564309.

It is an arithmetic number, because the mean of its divisors is an integer number (15694166880).

Almost surely, 2^166195096742 is an apocalyptic number.

166195096742 is a deficient number, since it is larger than the sum of its proper divisors (84911573338).

166195096742 is a wasteful number, since it uses less digits than its factorization.

166195096742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49075.

The product of its (nonzero) digits is 4898880, while the sum is 56.

The spelling of 166195096742 in words is "one hundred sixty-six billion, one hundred ninety-five million, ninety-six thousand, seven hundred forty-two".