102661678 has 16 divisors (see below), whose sum is σ = 177971040. Its totient is φ = 43502976.

The previous prime is 102661661. The next prime is 102661679. The reversal of 102661678 is 876166201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102661679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39951 + ... + 42442.

It is an arithmetic number, because the mean of its divisors is an integer number (11123190).

Almost surely, 2^102661678 is an apocalyptic number.

102661678 is a deficient number, since it is larger than the sum of its proper divisors (75309362).

102661678 is an equidigital number, since it uses as much as digits as its factorization.

102661678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82491.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 102661678 is about 10132.2099267633. The cubic root of 102661678 is about 468.2410153376.

The spelling of 102661678 in words is "one hundred two million, six hundred sixty-one thousand, six hundred seventy-eight".