60610005990 has 96 divisors (see below), whose sum is σ = 171365556960. Its totient is φ = 14800776192.

The previous prime is 60610005977. The next prime is 60610005991. The reversal of 60610005990 is 9950001606.

60610005990 is a `hidden beast` number, since 6 + 0 + 61 + 0 + 0 + 0 + 599 + 0 = 666.

It is a super-2 number, since 2×60610005990² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60610005991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 478720 + ... + 591939.

It is an arithmetic number, because the mean of its divisors is an integer number (1785057885).

Almost surely, 2^60610005990 is an apocalyptic number.

60610005990 is an abundant number, since it is smaller than the sum of its proper divisors (110755550970).

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

60610005990 is a wasteful number, since it uses less digits than its factorization.

60610005990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070726 (or 1070723 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The spelling of 60610005990 in words is "sixty billion, six hundred ten million, five thousand, nine hundred ninety".