61331144006 has 16 divisors (see below), whose sum is σ = 100885506048. Its totient is φ = 27731833800.

The previous prime is 61331143987. The next prime is 61331144009. The reversal of 61331144006 is 60044113316.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 61331144006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61331144009) 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, 7293650 + ... + 7302053.

It is an arithmetic number, because the mean of its divisors is an integer number (6305344128).

Almost surely, 2^61331144006 is an apocalyptic number.

61331144006 is a deficient number, since it is larger than the sum of its proper divisors (39554362042).

61331144006 is a wasteful number, since it uses less digits than its factorization.

61331144006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14595907.

The product of its (nonzero) digits is 5184, while the sum is 29.

The spelling of 61331144006 in words is "sixty-one billion, three hundred thirty-one million, one hundred forty-four thousand, six".