61500416444 has 12 divisors (see below), whose sum is σ = 107637576984. Its totient is φ = 30746823024.

The previous prime is 61500416441. The next prime is 61500416447. The reversal of 61500416444 is 44461400516.

It is an interprime number because it is at equal distance from previous prime (61500416441) and next prime (61500416447).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61500416441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 805202 + ... + 878265.

It is an arithmetic number, because the mean of its divisors is an integer number (8969798082).

Almost surely, 2^61500416444 is an apocalyptic number.

It is an amenable number.

61500416444 is a deficient number, since it is larger than the sum of its proper divisors (46137160540).

61500416444 is a wasteful number, since it uses less digits than its factorization.

61500416444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1692604 (or 1692602 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

The spelling of 61500416444 in words is "sixty-one billion, five hundred million, four hundred sixteen thousand, four hundred forty-four".