166725235506155 has 8 divisors (see below), whose sum is σ = 200070887965200. Its totient is φ = 133379784833056.

The previous prime is 166725235506139. The next prime is 166725235506227. The reversal of 166725235506155 is 551605532527661.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 166725235506155 - 2⁴ = 166725235506139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 166725235506094 and 166725235506103.

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, 48622745 + ... + 51938634.

It is an arithmetic number, because the mean of its divisors is an integer number (25008860995650).

Almost surely, 2^{166725235506155} is an apocalyptic number.

166725235506155 is a deficient number, since it is larger than the sum of its proper divisors (33345652459045).

166725235506155 is a wasteful number, since it uses less digits than its factorization.

166725235506155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100892973.

The product of its (nonzero) digits is 56700000, while the sum is 59.

The spelling of 166725235506155 in words is "one hundred sixty-six trillion, seven hundred twenty-five billion, two hundred thirty-five million, five hundred six thousand, one hundred fifty-five".