61044278156 has 6 divisors (see below), whose sum is σ = 106827486780. Its totient is φ = 30522139076.

The previous prime is 61044278137. The next prime is 61044278159. The reversal of 61044278156 is 65187244016.

It is not an unprimeable number, because it can be changed into a prime (61044278159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7630534766 + ... + 7630534773.

It is an arithmetic number, because the mean of its divisors is an integer number (17804581130).

Almost surely, 2^61044278156 is an apocalyptic number.

It is an amenable number.

61044278156 is a deficient number, since it is larger than the sum of its proper divisors (45783208624).

61044278156 is a wasteful number, since it uses less digits than its factorization.

61044278156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15261069543 (or 15261069541 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 44.

The spelling of 61044278156 in words is "sixty-one billion, forty-four million, two hundred seventy-eight thousand, one hundred fifty-six".