61005151569 has 16 divisors (see below), whose sum is σ = 85976559680. Its totient is φ = 38369687040.

The previous prime is 61005151567. The next prime is 61005151583. The reversal of 61005151569 is 96515150016.

It is not a de Polignac number, because 61005151569 - 2¹ = 61005151567 is a prime.

It is a super-2 number, since 2×61005151569² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61005151567) 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, 2206732 + ... + 2234205.

It is an arithmetic number, because the mean of its divisors is an integer number (5373534980).

Almost surely, 2^61005151569 is an apocalyptic number.

It is an amenable number.

61005151569 is a deficient number, since it is larger than the sum of its proper divisors (24971408111).

61005151569 is a wasteful number, since it uses less digits than its factorization.

61005151569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4441200.

The product of its (nonzero) digits is 40500, while the sum is 39.

The spelling of 61005151569 in words is "sixty-one billion, five million, one hundred fifty-one thousand, five hundred sixty-nine".