166402133166415 has 16 divisors (see below), whose sum is σ = 216585387678240. Its totient is φ = 122235139425280.

The previous prime is 166402133166377. The next prime is 166402133166427. The reversal of 166402133166415 is 514661331204661.

It is not a de Polignac number, because 166402133166415 - 2⁹ = 166402133165903 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23874047185 + ... + 23874054154.

It is an arithmetic number, because the mean of its divisors is an integer number (13536586729890).

Almost surely, 2^{166402133166415} is an apocalyptic number.

166402133166415 is a deficient number, since it is larger than the sum of its proper divisors (50183254511825).

166402133166415 is a wasteful number, since it uses less digits than its factorization.

166402133166415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47748101402.

The product of its (nonzero) digits is 1866240, while the sum is 49.

The spelling of 166402133166415 in words is "one hundred sixty-six trillion, four hundred two billion, one hundred thirty-three million, one hundred sixty-six thousand, four hundred fifteen".