61101678 has 16 divisors (see below), whose sum is σ = 133312896. Its totient is φ = 18515640.

The previous prime is 61101673. The next prime is 61101679. The reversal of 61101678 is 87610116.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61101673) 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, 462826 + ... + 462957.

It is an arithmetic number, because the mean of its divisors is an integer number (8332056).

Almost surely, 2^61101678 is an apocalyptic number.

61101678 is an abundant number, since it is smaller than the sum of its proper divisors (72211218).

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

61101678 is a wasteful number, since it uses less digits than its factorization.

61101678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925799.

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 61101678 is about 7816.7562326070. The cubic root of 61101678 is about 393.8683155657.

The spelling of 61101678 in words is "sixty-one million, one hundred one thousand, six hundred seventy-eight".