68661801 has 48 divisors (see below), whose sum is σ = 114354240. Its totient is φ = 39346560.

The previous prime is 68661787. The next prime is 68661811. The reversal of 68661801 is 10816686.

It is not a de Polignac number, because 68661801 - 2⁶ = 68661737 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68661811) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 148711 + ... + 149171.

It is an arithmetic number, because the mean of its divisors is an integer number (2382380).

Almost surely, 2^68661801 is an apocalyptic number.

It is an amenable number.

68661801 is a deficient number, since it is larger than the sum of its proper divisors (45692439).

68661801 is a wasteful number, since it uses less digits than its factorization.

68661801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566 (or 563 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 68661801 is about 8286.2416691767. The cubic root of 68661801 is about 409.4853765346.

The spelling of 68661801 in words is "sixty-eight million, six hundred sixty-one thousand, eight hundred one".