101166540 has 24 divisors (see below), whose sum is σ = 283266480. Its totient is φ = 26977728.

The previous prime is 101166521. The next prime is 101166577. The reversal of 101166540 is 45661101.

It is a self number, because there is not a number n which added to its sum of digits gives 101166540.

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, 842995 + ... + 843114.

It is an arithmetic number, because the mean of its divisors is an integer number (11802770).

Almost surely, 2^101166540 is an apocalyptic number.

101166540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101166540 is an abundant number, since it is smaller than the sum of its proper divisors (182099940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101166540 is a wasteful number, since it uses less digits than its factorization.

101166540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1686121 (or 1686119 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 101166540 is about 10058.1578830321. The cubic root of 101166540 is about 465.9567766771.

The spelling of 101166540 in words is "one hundred one million, one hundred sixty-six thousand, five hundred forty".