68611153 has 16 divisors (see below), whose sum is σ = 77550592. Its totient is φ = 60264000.

The previous prime is 68611141. The next prime is 68611171. The reversal of 68611153 is 35111686.

It is a de Polignac number, because none of the positive numbers 2^k-68611153 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (68611183) 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, 23188 + ... + 25978.

It is an arithmetic number, because the mean of its divisors is an integer number (4846912).

Almost surely, 2^68611153 is an apocalyptic number.

It is an amenable number.

68611153 is a deficient number, since it is larger than the sum of its proper divisors (8939439).

68611153 is a wasteful number, since it uses less digits than its factorization.

68611153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2896.

The product of its digits is 4320, while the sum is 31.

The square root of 68611153 is about 8283.1849550762. The cubic root of 68611153 is about 409.3846668890.

The spelling of 68611153 in words is "sixty-eight million, six hundred eleven thousand, one hundred fifty-three".