61564142301 has 16 divisors (see below), whose sum is σ = 83851192320. Its totient is φ = 40166166960.

The previous prime is 61564142291. The next prime is 61564142303. The reversal of 61564142301 is 10324146516.

It is not a de Polignac number, because 61564142301 - 2¹⁵ = 61564109533 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61564142303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 740395 + ... + 819336.

It is an arithmetic number, because the mean of its divisors is an integer number (5240699520).

Almost surely, 2^61564142301 is an apocalyptic number.

It is an amenable number.

61564142301 is a deficient number, since it is larger than the sum of its proper divisors (22287050019).

61564142301 is a wasteful number, since it uses less digits than its factorization.

61564142301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1560016.

The product of its (nonzero) digits is 17280, while the sum is 33.

Adding to 61564142301 its reverse (10324146516), we get a palindrome (71888288817).

The spelling of 61564142301 in words is "sixty-one billion, five hundred sixty-four million, one hundred forty-two thousand, three hundred one".