61304660000 has 120 divisors (see below), whose sum is σ = 157377173184. Its totient is φ = 23455520000.

The previous prime is 61304659993. The next prime is 61304660009. The reversal of 61304660000 is 6640316.

It is a super-2 number, since 2×61304660000² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61304660009) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 393365 + ... + 526635.

Almost surely, 2^61304660000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61304660000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78688586592).

61304660000 is an abundant number, since it is smaller than the sum of its proper divisors (96072513184).

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

61304660000 is a wasteful number, since it uses less digits than its factorization.

61304660000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133324 (or 133301 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The spelling of 61304660000 in words is "sixty-one billion, three hundred four million, six hundred sixty thousand".