101666156047 has 2 divisors, whose sum is σ = 101666156048. Its totient is φ = 101666156046.

The previous prime is 101666156003. The next prime is 101666156093. The reversal of 101666156047 is 740651666101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101666156047 - 2³⁵ = 67306417679 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101666155994 and 101666156012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101666156947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50833078023 + 50833078024.

It is an arithmetic number, because the mean of its divisors is an integer number (50833078024).

Almost surely, 2^101666156047 is an apocalyptic number.

101666156047 is a deficient number, since it is larger than the sum of its proper divisors (1).

101666156047 is an equidigital number, since it uses as much as digits as its factorization.

101666156047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 101666156047 in words is "one hundred one billion, six hundred sixty-six million, one hundred fifty-six thousand, forty-seven".