65611867256061 has 8 divisors (see below), whose sum is σ = 99979988199744. Its totient is φ = 37492495574880.

The previous prime is 65611867256059. The next prime is 65611867256063. The reversal of 65611867256061 is 16065276811656.

It is an interprime number because it is at equal distance from previous prime (65611867256059) and next prime (65611867256063).

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

It is not a de Polignac number, because 65611867256061 - 2¹ = 65611867256059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65611867255986 and 65611867256004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65611867256063) 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, 1562187315600 + ... + 1562187315641.

It is an arithmetic number, because the mean of its divisors is an integer number (12497498524968).

Almost surely, 2^{65611867256061} is an apocalyptic number.

It is an amenable number.

65611867256061 is a deficient number, since it is larger than the sum of its proper divisors (34368120943683).

65611867256061 is a wasteful number, since it uses less digits than its factorization.

65611867256061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3124374631251.

The product of its (nonzero) digits is 21772800, while the sum is 60.

The spelling of 65611867256061 in words is "sixty-five trillion, six hundred eleven billion, eight hundred sixty-seven million, two hundred fifty-six thousand, sixty-one".