166420045315254 has 32 divisors (see below), whose sum is σ = 346047069142656. Its totient is φ = 53312573666880.

The previous prime is 166420045315177. The next prime is 166420045315301. The reversal of 166420045315254 is 452513540024661.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5048522692 + ... + 5048555655.

It is an arithmetic number, because the mean of its divisors is an integer number (10813970910708).

Almost surely, 2^{166420045315254} is an apocalyptic number.

166420045315254 is an abundant number, since it is smaller than the sum of its proper divisors (179627023827402).

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

166420045315254 is a wasteful number, since it uses less digits than its factorization.

166420045315254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10097078460.

The product of its (nonzero) digits is 3456000, while the sum is 48.

The spelling of 166420045315254 in words is "one hundred sixty-six trillion, four hundred twenty billion, forty-five million, three hundred fifteen thousand, two hundred fifty-four".