61110605604 has 12 divisors (see below), whose sum is σ = 142591413104. Its totient is φ = 20370201864.

The previous prime is 61110605603. The next prime is 61110605623. The reversal of 61110605604 is 40650601116.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×61110605604² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61110605603) 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, 2546275222 + ... + 2546275245.

Almost surely, 2^61110605604 is an apocalyptic number.

It is an amenable number.

61110605604 is an abundant number, since it is smaller than the sum of its proper divisors (81480807500).

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

61110605604 is a wasteful number, since it uses less digits than its factorization.

61110605604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5092550474 (or 5092550472 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The spelling of 61110605604 in words is "sixty-one billion, one hundred ten million, six hundred five thousand, six hundred four".