61200572666127 has 4 divisors (see below), whose sum is σ = 81600763554840. Its totient is φ = 40800381777416.

The previous prime is 61200572666113. The next prime is 61200572666143. The reversal of 61200572666127 is 72166627500216.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61200572666127 - 2¹⁵ = 61200572633359 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61200572666127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61200572656127) 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, 10200095444352 + ... + 10200095444357.

It is an arithmetic number, because the mean of its divisors is an integer number (20400190888710).

Almost surely, 2^{61200572666127} is an apocalyptic number.

61200572666127 is a deficient number, since it is larger than the sum of its proper divisors (20400190888713).

61200572666127 is a wasteful number, since it uses less digits than its factorization.

61200572666127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20400190888712.

The product of its (nonzero) digits is 2540160, while the sum is 51.

The spelling of 61200572666127 in words is "sixty-one trillion, two hundred billion, five hundred seventy-two million, six hundred sixty-six thousand, one hundred twenty-seven".