101666536 has 8 divisors (see below), whose sum is σ = 190624770. Its totient is φ = 50833264.

The previous prime is 101666527. The next prime is 101666557. The reversal of 101666536 is 635666101.

It can be written as a sum of positive squares in only one way, i.e., 86378436 + 15288100 = 9294^2 + 3910^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6354151 + ... + 6354166.

Almost surely, 2^101666536 is an apocalyptic number.

It is an amenable number.

101666536 is a deficient number, since it is larger than the sum of its proper divisors (88958234).

101666536 is a wasteful number, since it uses less digits than its factorization.

101666536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12708323 (or 12708319 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 101666536 is about 10082.9824952739. The cubic root of 101666536 is about 466.7231491725.

The spelling of 101666536 in words is "one hundred one million, six hundred sixty-six thousand, five hundred thirty-six".