101405506166 has 4 divisors (see below), whose sum is σ = 152108259252. Its totient is φ = 50702753082.

The previous prime is 101405506159. The next prime is 101405506171. The reversal of 101405506166 is 661605504101.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25351376540 + ... + 25351376543.

It is an arithmetic number, because the mean of its divisors is an integer number (38027064813).

Almost surely, 2^101405506166 is an apocalyptic number.

101405506166 is a deficient number, since it is larger than the sum of its proper divisors (50702753086).

101405506166 is an equidigital number, since it uses as much as digits as its factorization.

101405506166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50702753085.

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 101405506166 in words is "one hundred one billion, four hundred five million, five hundred six thousand, one hundred sixty-six".