101666151 has 16 divisors (see below), whose sum is σ = 152682720. Its totient is φ = 66847680.

The previous prime is 101666099. The next prime is 101666179. The reversal of 101666151 is 151666101.

It is not a de Polignac number, because 101666151 - 2⁹ = 101665639 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101666051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23820 + ... + 27761.

It is an arithmetic number, because the mean of its divisors is an integer number (9542670).

Almost surely, 2^101666151 is an apocalyptic number.

101666151 is a deficient number, since it is larger than the sum of its proper divisors (51016569).

101666151 is an equidigital number, since it uses as much as digits as its factorization.

101666151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51663 (or 51657 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 101666151 is about 10082.9634036825. The cubic root of 101666151 is about 466.7225600287.

The spelling of 101666151 in words is "one hundred one million, six hundred sixty-six thousand, one hundred fifty-one".