61766632612971 has 24 divisors (see below), whose sum is σ = 104816103830256. Its totient is φ = 34554759503040.

The previous prime is 61766632612967. The next prime is 61766632613027. The reversal of 61766632612971 is 17921623666716.

It is a happy number.

It is not a de Polignac number, because 61766632612971 - 2² = 61766632612967 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61766632612899 and 61766632612908.

It is not an unprimeable number, because it can be changed into a prime (61766632612271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23996359480 + ... + 23996362053.

It is an arithmetic number, because the mean of its divisors is an integer number (4367337659594).

Almost surely, 2^{61766632612971} is an apocalyptic number.

61766632612971 is a deficient number, since it is larger than the sum of its proper divisors (43049471217285).

61766632612971 is a wasteful number, since it uses less digits than its factorization.

61766632612971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47992721563 (or 47992721560 counting only the distinct ones).

The product of its digits is 41150592, while the sum is 63.

The spelling of 61766632612971 in words is "sixty-one trillion, seven hundred sixty-six billion, six hundred thirty-two million, six hundred twelve thousand, nine hundred seventy-one".