61200102052 has 12 divisors (see below), whose sum is σ = 107103720780. Its totient is φ = 30599038976.

The previous prime is 61200102043. The next prime is 61200102079. The reversal of 61200102052 is 25020100216.

It can be written as a sum of positive squares in 2 ways, for example, as 26851410496 + 34348691556 = 163864^2 + 185334^2 .

It is a super-2 number, since 2×61200102052² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107677 + ... + 366052.

It is an arithmetic number, because the mean of its divisors is an integer number (8925310065).

Almost surely, 2^61200102052 is an apocalyptic number.

It is an amenable number.

61200102052 is a deficient number, since it is larger than the sum of its proper divisors (45903618728).

61200102052 is a wasteful number, since it uses less digits than its factorization.

61200102052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506030 (or 506028 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 61200102052 its reverse (25020100216), we get a palindrome (86220202268).

The spelling of 61200102052 in words is "sixty-one billion, two hundred million, one hundred two thousand, fifty-two".