61098704960 has 28 divisors (see below), whose sum is σ = 145491291948. Its totient is φ = 24439481856.

The previous prime is 61098704951. The next prime is 61098704969. The reversal of 61098704960 is 6940789016.

It is an interprime number because it is at equal distance from previous prime (61098704951) and next prime (61098704969).

It can be written as a sum of positive squares in 2 ways, for example, as 36200389696 + 24898315264 = 190264^2 + 157792^2 .

It is a junction number, because it is equal to n+sod(n) for n = 61098704899 and 61098704908.

It is not an unprimeable number, because it can be changed into a prime (61098704969) 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, 95466407 + ... + 95467046.

Almost surely, 2^61098704960 is an apocalyptic number.

It is an amenable number.

61098704960 is an abundant number, since it is smaller than the sum of its proper divisors (84392586988).

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

61098704960 is a wasteful number, since it uses less digits than its factorization.

61098704960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190933470 (or 190933460 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 50.

The spelling of 61098704960 in words is "sixty-one billion, ninety-eight million, seven hundred four thousand, nine hundred sixty".