61014445646 has 64 divisors (see below), whose sum is σ = 120950267904. Its totient is φ = 22348838400.

The previous prime is 61014445643. The next prime is 61014445699. The reversal of 61014445646 is 64654441016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61014445643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2451155 + ... + 2475921.

It is an arithmetic number, because the mean of its divisors is an integer number (1889847936).

Almost surely, 2^61014445646 is an apocalyptic number.

61014445646 is a deficient number, since it is larger than the sum of its proper divisors (59935822258).

61014445646 is a wasteful number, since it uses less digits than its factorization.

61014445646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25745.

The product of its (nonzero) digits is 276480, while the sum is 41.

The spelling of 61014445646 in words is "sixty-one billion, fourteen million, four hundred forty-five thousand, six hundred forty-six".