166202315444 has 24 divisors (see below), whose sum is σ = 331090780608. Its totient is φ = 72261875840.

The previous prime is 166202315437. The next prime is 166202315479. The reversal of 166202315444 is 444513202661.

It is a junction number, because it is equal to n+sod(n) for n = 166202315398 and 166202315407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82114757 + ... + 82116780.

It is an arithmetic number, because the mean of its divisors is an integer number (13795449192).

Almost surely, 2^166202315444 is an apocalyptic number.

It is an amenable number.

166202315444 is a deficient number, since it is larger than the sum of its proper divisors (164888465164).

166202315444 is a wasteful number, since it uses less digits than its factorization.

166202315444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164231575 (or 164231573 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 38.

The spelling of 166202315444 in words is "one hundred sixty-six billion, two hundred two million, three hundred fifteen thousand, four hundred forty-four".