68655855 has 16 divisors (see below), whose sum is σ = 113393664. Its totient is φ = 35435040.

The previous prime is 68655841. The next prime is 68655859. The reversal of 68655855 is 55855686.

It is not a de Polignac number, because 68655855 - 2⁵ = 68655823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68655859) 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, 73359 + ... + 74288.

It is an arithmetic number, because the mean of its divisors is an integer number (7087104).

Almost surely, 2^68655855 is an apocalyptic number.

68655855 is a deficient number, since it is larger than the sum of its proper divisors (44737809).

68655855 is a wasteful number, since it uses less digits than its factorization.

68655855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147686.

The product of its digits is 1440000, while the sum is 48.

The square root of 68655855 is about 8285.8828739006. The cubic root of 68655855 is about 409.4735559381.

It can be divided in two parts, 6865 and 5855, that added together give a triangular number (12720 = T₁₅₉).

The spelling of 68655855 in words is "sixty-eight million, six hundred fifty-five thousand, eight hundred fifty-five".