61655055069 has 8 divisors (see below), whose sum is σ = 82389830400. Its totient is φ = 41011824896.

The previous prime is 61655055067. The next prime is 61655055083. The reversal of 61655055069 is 96055055616.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61655055069 - 2¹ = 61655055067 is a prime.

It is a super-2 number, since 2×61655055069² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61655055061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22884717 + ... + 22887410.

It is an arithmetic number, because the mean of its divisors is an integer number (10298728800).

Almost surely, 2^61655055069 is an apocalyptic number.

It is an amenable number.

61655055069 is a deficient number, since it is larger than the sum of its proper divisors (20734775331).

61655055069 is a wasteful number, since it uses less digits than its factorization.

61655055069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45772579.

The product of its (nonzero) digits is 1215000, while the sum is 48.

The spelling of 61655055069 in words is "sixty-one billion, six hundred fifty-five million, fifty-five thousand, sixty-nine".